PS:1 Wiki Dev - User contributions [en]

Pumping Station One

2026-03-08T14:16:17Z

Tmnyhbs:

[[File:PS1 only logo.svg|frameless|right|128x128px|link=https://pumpingstationone.org/]]
[[File:The Alley Mark Thomas Instagram Tour.jpg|frameless|right|228x228px|link=https://www.instagram.com/p/DHQ4jS0iqDr/|Video tour of PS1 by The Alley's Mark Thomas]]
'''Chicago's Maker & Hacker Space since 2009,''' a 501(c)(3) nonprofit [[organization]].

📍 '''Location:''' [https://duckduckgo.com/?t=ffab&q=pumping%20station%20one&iaxm=maps&bbox=-87.70836905218115%2C41.9462433639542%2C-87.7041106923302%2C41.94432245649106&strict_bbox=1 3519 N. Elston Ave, Chicago, IL 60618]

📧 '''[mailto:info@pumpingstationone.org General Contact Email]'''

🫶 '''What is Pumping Station: One?''' We're a [https://www.makerspaces.com/what-is-a-makerspace/ maker & hacker space]. Watch a [https://www.instagram.com/p/DHQ4jS0iqDr/ video tour of PS1 by The Alley's Mark Thomas]. PS1 is a volunteer run place and community where people with an interest in arts, manufacturing, computing and technology can gather to work on projects while sharing ideas, equipment, and knowledge. [https://pumpingstationone.org/join/ Become a member] to get access to our space, tools, and community. Find out more [https://pumpingstationone.org/about/ on our general website].

🚲 '''I'm a guest, how do I visit?''' We have a live, guided tour for guests and prospective new members every Tuesday at 8 PM. It's a great time to learn about us, ask questions, and [https://pumpingstationone.org/join/ sign up for a membership]. Also, you can [https://players.cupix.com/p/nllihJB0 take a virtual tour]. In-person tours can also be arranged [mailto:info@pumpingstationone.org by request via email].

📅 '''Can I attend events if I'm not a member?''' Yes! Many of our events are open to the public, [https://pumpingstationone.org/events/ please check out our events calendar].

ℹ️ '''[[Membership Troubleshooting|Problems with your membership?]]'''

👯 '''Anyone there?''' Use [https://shopmon.pumpingstationone.org ShopMon] to see real-time activity at the space.

{| style="width:100%; margin-bottom:2px;" cellpadding="5"
|-
| valign="top" |

{| class="wikitable" style="width=100%"
! colspan="2" |[[Area Hosts]]
|-
|'''General'''
|[[:Category:General_Area|Info]], [https://pumpingstationone.org/events Events], [https://www.meetup.com/Pumping-Station-One/events Meetups]
|-
|'''CNC'''
|[[:Category:CNC|Info]]
|-
|'''Woodshop'''
|[[:Category:Wood_Shop|Info]]
|-
|'''Electronics'''
|[[:Category:Electronics|Info]], [http://www.google.com/calendar/render?cid=hkgq1nkid9up5e4oe9uacqdlic@group.calendar.google.com&ctz=America/Chicago Events]
|-
|'''Arts'''
|[[:Category:Arts|Info]]
|-
|'''Hot Metals'''
|[[:Category:Hot_Metals|Info]], [http://www.google.com/calendar/embed?src=tomjudge.com_cl3vcokea3rl5gfflp5d9putlo%40group.calendar.google.com&ctz=America/Chicago Events]
|-
|'''Cold Metals'''
|[[:Category:Cold_Metals|Info]]
|-
|'''Small Metals'''
|[[:Category:Small_Metals|Info]]
|-
|'''Kitchen'''
|[[:Category:Kitchen|Info]]
|-
|'''But wait, there's more!'''
|(someone should add them)]
|}

== About PS:One ==

* [[Frequently Asked Questions]]
* [[What is Pumping Station: One]]
* [[Contact Points]]
* [[Neighborhood Information]]
* [http://www.catb.org/jargon/html/H/hacker.html So who are hackers anyway?]
* [https://docs.google.com/drawings/d/1fSw_rkvtLdl2LviR44Uilo9n9bL3BDXxI3dH3_oju48/edit?usp=sharing 1st Floor Map At-a-Glance]

== Member Information ==
=='''New Members Start Here!'''==

* [[New Member Quick Start Guide]]
* [[New Member Orientation]]
* [https://member.pumpingstationone.org/ Membership Website] (Sometimes called Deep Harbor or the member site. You can manage your profile, payments and membership level here)
* [[Member Manual]]
* [[Guest Building Access]]
* [[Administration|How do things get done around here?]]
* [[How Do I Get Authorized?|How do I get authorized?]]
* [[Recommended Gear/Kit]]

====Want to help?====
* [[How can I help]]

====Need help?====
* [[Do you need help]]

====What are we working on?====
* [[:Category:Projects|Member Projects]]
* [[:Category:Tutorials|Member Tutorials]]

====Hey, where can I get stuff?====
Check the [[Sources]] page for an ever-growing list of places where you can pick up wood, metal, etc.

'''How do I manage my membership and payments?'''

Check out the [[Member Management]] page for information about canceling or changing your membership.

== Community ==

Who are the members of PS:One? How do they communicate? What do they know about this whole social interwebs thing?

====[[Administration]]====

* [[The Board|Board of Directors]] - The points of contact for day-to-day corporate operations, but not for most tools, equipment and space utilization.
* [[:Category:Hosted Areas|Area Hosts]] - The main points of contact for the (currently 12) different areas of the space.
* [[Volunteer Positions|Volunteer Authorizers]] - contact info for the Volunteer Positions established by the Board.

==== Communication ====

*[[:Category:Meetings|Member Meetings]]
*[[Discord]]
*[[:Category:2026 Board Meetings|2026 Board Meetings]]
*[[Contact Points#Email Lists|Email Lists]]
*[[Contact Points#Social Networks|Social Networking]]
*[[Contact Points#Links|Other PS:One sites and online spaces]]
*[[Freshdesk]] - A help desk system that we use to track issues.
*[[Votes|Member Votes]] - How we do/buy/decide big things
*[[:Category:Policy|Policies]]
*[https://canvas.pumpingstationone.org/login/ldap Canvas LMS]

==[[Events]]==

*[http://www.google.com/calendar/embed?src=hhlp4gcgvdmifq5lcbk7e27om4%40group.calendar.google.com&ctz=America/Chicago PS:One Google Calendar]
*[http://www.meetup.com/Pumping-Station-One/ PS:One Meetup Group]
* [[:Category:Classes|Classes]]
*[[New events|How do I create an event?]]

| valign="top" |

==Things We Have==

How to do things, where to get things, what's in the area, and other general reference stuff you feel like sharing.

====Hardware====

*[[Facilities]]: A list of what has been made available, and what should soon be made available to members.
*[[:Category:Equipment|Tools and Equipment]] : All PS:One equipment, tools, authorization, safety, and repair information goes here.
*[[Sources]]: Where to get stuff: from Depots to dumpsters.
* [[:Category:Facilities|Building Facilities]]: How our building works.

====Other====

*[[Resources]]
*[[Administration#Important Documents|Important Documents and Files]]
* [[IT Infrastructure]]
*[[Supplies]] and other things purchased for day-to-day space needs
*[[Member Storage Registry]] tracks locker/shelf use

== What We Do ==
PS:One is a [[Do-ocracy]]. Here is some of what we do:

====Current Projects====
*[https://pumpingstationone.org/2024/09/commencing-fundraising-to-purchase-our-building/ Buying the building]
*Replacing our member management software

====[[:Category:Interest Groups|Interest Groups]]====
*[[NERP]] (Not Exclusively Raspberry Pi): Embedded Systems (biweekly)
*[[Beer Church]] (and Brewing Station: One): Beer appreciation and home brewing
*[[TOOOL Chicago]]: A monthly meetup about locks and lockpicking
*[[Python Office Hours]]: A biweekly meetup about python programming
*[[Electronic Music Mangling Group]]: A meetup about making and producing music, all experience levels welcome. Biweekly on Weds
*[[Wiki Maintenance]]: Maintaining the wiki and teach people how to help.
* [[Power Racing Team]]: The PS:One Power Racing Team - the tiny cars everywhere are our fault.
*[https://www.meetup.com/chicago-3d-printing-meetup-group Chicago 3D Printing Meetup]: A meetup about everything 3D printing related. Meets the last Wednesday of every month in the first floor lounge!

====Space Automation====

*[https://shopmon.pumpingstationone.org ShopMon] - Real time activity at the space

[[Discord]] Integration:

*[[Shopmon]] - what rooms are busy, and are the doors open?
*[[Propanebot]] -
*[[Tempbot]] - Reads temp/humidity in space areas
__NOTOC__
|}

Authorizations

2026-03-05T19:42:36Z

Tmnyhbs:

{{ambox|type=content|text=<span style="color:#800000">'''Notice, March 2024 -</span> Confirm authorizations on [[Discord]] first'''<br>
Post pandemic, we're (slowly) updating old authorization info. If there's a <span style="color: SteelBlue ;font-weight: bold; ">blue Authorization Course Info box</span> on this page or a tool's page, the authorization course info in that box should be up-to-date. Otherwise, any other info you find should be considered out of date. Confirm in the appropriate area channel on Discord if the info is correct or not.}}
==What is an authorization?==
[[File:Authorization-required.png|thumb]]
[[File:Sample auth sticker.png|thumb]]
'''Any tool more dangerous than a soldering iron requires authorization before use''', these are marked with an "Authorization Required - Do Not Hack" sticker like the one pictured. Authorizations are how we keep each other safe and maintain our tools for the community, this is why '''authorizations are still required even if a member has prior knowledge of how to use a specific tool'''. ''Be cool, get authed''.

Note that the process for getting authorized varies greatly between different tools/areas, affected by:

<li> Whether a canvas course exists or not.
<li> How frequently people are interested in a specific authorization. Some are scheduled, some are at member's requests, some are "we haven't done this in awhile".
<li> The authorizer's preferred method of contact.

===I want to get authorized, the crash course===
<ol><li> '''Read''' [[How Do I Get Authorized?]]
<li> '''Find''' the authorization info in one of these ways:
<ul><li> Scan the QR on the "Authorization Required" sticker on the tool, see example above
<li> Search for the tool's wiki page
<li> Or look through the list on this page
<li> <li>
</ul>
<li>'''Follow the instructions in the blue authorization notice box''', see example below
<ul><li> If the blue authorization notice box is missing, ask on [[Discord]] for confirmation the instructions on the page are still accurate</li>
<li>Some authorizations are regularly scheduled while others are by appointment. To schedule a by appointment authorization, members may post in the relevant [[Discord]] channel, or contact a volunteer authorizer directly.</li>
<li>Note that authorizations requiring a Canvas course, only show you the schedule after you complete the course. Even then sometimes (especially Woodshop) the authorizations are booked up for that month.</li></ul>
<li> '''Complete the authorization'''
<li> Required: '''Make something cool!'''
</ol>

Please help us out by letting area hosts (or [https://discord.com/channels/1270929620224704544/1308619569828593775 #wiki-love]) know if the information on this page needs to be updated. You are also welcome to update this wiki page yourself. Thanks!

__TOC__

==[[:Category:Wood Shop|Woodshop]]==
[[File:Woodshop clean.png|thumb]]
<section begin="woodshop"/>
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270939083685892229 #woodshop-general] on [[Discord]].

The Woodshop Basic course only covers the tools listed in the blue info box below, it does not cover specialty tools listed further down. Keep in mind the Woodshop Basic course ([https://canvas.pumpingstationone.org/courses/40 LINK to Course]) is a required prerequisite for all other Woodshop specialty tool authorizations.
===Woodshop Basic===
{{:Authorizations/Woodshop Basic}}

===Woodshop Special Tools===
{{:Authorizations/Sweet 16 Wood Lathe}}

{{:Authorizations/Delta Tenoning Jig}}

{{:Authorizations/Advanced Bandsaw, Resawing and Maintenance}}

{{:Authorizations/SawStop Dado Stack}}
<section end="woodshop"/>
==Small Metals==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938338760724573 #small-metals-general] on [[Discord]].

All small metals authorizations are by-request.
{| class="wikitable sortable"
|-
! scope="col" |Area
! scope="col" |Authorization
! scope="col" |Contact
|-
|Small Metals
|Basic Authorization
| [[Volunteer Positions#Small Metals Authorizer|Small Metals Authorizers]]
|-
|Small Metals
|Casting
|[[Volunteer Positions#Small Metals Authorizer|Small Metals Authorizers]]
|-
|Small Metals
|Hydraulic Press
|[[Volunteer Positions#Small Metals Authorizer|Small Metals Authorizers]]
|}
Ask for dates and times in [https://discord.com/channels/1270929620224704544/1270938338760724573 #small-metals-general] on [[Discord]].

Please review the wiki pages: '''[[Acetylene_Air_Torch_Jewelry]]''', '''[[Evenheat_810_Kiln]]''', '''[[AIM_Kiln_1413]]''' and '''[[Dyna_Kiln_N100]]'''

==Cold Metals==
Need help? Questions? [https://discord.com/channels/1270929620224704544/1270939023392903228 #cold-metals-general] on [[Discord]].

All small metals authorizations are by-request.

===[[Tier 1 Cold Metals Authorization]]===
Authorizations for many of the most commonly used metal tools, including the drill press, [[Rockwell Delta 20" Bandsaw|bandsaw]], [[Johnson Bandsaw|Johnson bandsaw]], [[DeWalt Chop Saw|chop saw]], [[Belt Sander|belt sander]], [[Bench Grinder (6in)|bench grinder]], and [[Angle Grinder (4.5in)|angle grinders]], are bundled together into a single session.

The following table generally requires completion of Tier 1 prior to authorization.

{| class="wikitable sortable"
|-
! scope="col" |Area
! scope="col" |Authorization
! scope="col" |Contact
|-
|Cold Metals
|Clausing Metal Lathe
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
|LeBlond Metal Lathe
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
| Cold Metals
|Bridgeport Knee Mill
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
| Grizzly Mini Metal Lathe
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
| Surface Grinder
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
|Baldor 510 Tool Grinder
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|}
==Hot Metals ==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938266794721301 #hotmetalshop] on [[Discord]].

The Hot Metals general auth is a prerequisite for all other authorizations in this area, in addition to any listed prerequisites. Additionally there is a recommended [https://canvas.pumpingstationone.org/courses/65 Canvas course] to help you become familiar with all things Hot Metal.
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|Hot Metals general auth
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Hot_Metals_Authorizers Hot Metals Authorizers]
|-
|[[Big Blasting Cabinet]]
|Contact an Authorizer to set up a time
|-
| [[Belovac Vacuum Forming Machine]]
|[[Viral Authorizations]], Post request to [https://discord.com/channels/1270929620224704544/1270938266794721301 #hotmetalshop] on [[Discord]]
|-
|Powder Coating
|Contact an Authorizer to set up a time
|-
|MIG Welder
|Auths available during office hours - check the [https://pumpingstationone.org/events/ Events Calendar]
|-
|TIG Welder
|Contact an authorizer to set up a time
|-
|[[CNC Plasma Cutter]]
|Regularly scheduled - check the [https://pumpingstationone.org/events/ Events Calendar]
|-
|Handheld Plasma Cutter
|Auths available during office hours - check the [https://pumpingstationone.org/events/ Events Calendar]
|-
|[[Blacksmithing_Area | Blacksmithing/Forges]]
|Auths available during office hours - check the [https://pumpingstationone.org/events/ Events Calendar]
|}

==CNC - Lasers==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270939157484539935 #lasers] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|[[Universal PLS6.150D 150W Laser Engraver]]
|[https://wiki.pumpingstationone.org/Universal_PLS6.150D_150W_Laser_Engraver#Authorization:_How_to_Get_Authorized Contact Lasers Authorizers]
|-
|[[BOSS LS-3655 150w Laser Engraver]]
|[https://wiki.pumpingstationone.org/BOSS_LS-3655_150w_Laser_Engraver#Authorization Contact Lasers Authorizers]
|-
|[[Universal Maintenance | Universal Laser Maintenance]]
|[https://wiki.pumpingstationone.org/Universal_PLS6.150D_150W_Laser_Engraver#Authorization:_How_to_Get_Authorized Contact Lasers Authorizers]
|-
|[[BOSS Maintenance | Boss Laser Maintenance]]
|[https://wiki.pumpingstationone.org/BOSS_LS-3655_150w_Laser_Engraver#Authorization Contact Lasers Authorizers]
|}

==CNC - 3D Resin (SLA) Printers==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1286074409177714708 #3d-sla-printing] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|[[Formlabs Form 3 SLA Printer | Form 3 SLA 3D printer]]
|There are no authorizations for the SLA printers. Instead, ask the Specialty 3D Area host in [https://discord.com/channels/1270929620224704544/1286074409177714708 Discord]. You will need to supply your file(s) for printing by emailing to specialty3d@pumpingstationone.org. Resin is either $0.25mL or $0.50 per mL depending upon the type of resin.
|}

==CNC - 3D Filament (FDM) Printers==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/12709387556746732558 #3d-printing] on [[Discord]].

3D printers using filament only require the canvas course, no in person authorization needed.
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|[[ Prusa i3 3D printer]]
|[https://canvas.pumpingstationone.org/courses/60#Auths are online only through canvas].
|-
|[[ Creality Ender 3 A 3D Printer]]
|[https://canvas.pumpingstationone.org/courses/60#Auths are online only through canvas]. 3D printers using filament only require the canvas course.
|}

== Industrial CNC ==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270939130200850557 #cnc-general] on [[Discord]].

==== ShopBot====
There are 2 required classes for complete Shopbot Authorization. The first class is a software-only class to cover CNC concepts and the toolpath and control software. This class is unlimited capacity and generally open to the public. The software-only class is a prerequisite for the second class, the hands-on ShopBot authorization, which will be significantly shortened since it will only cover the specifics of the tool itself.

{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
| '''Prerequisites'''
|'''Authorizer(s)'''
|-
|[[ShapeOko2 CNC Router]]
|2D and 3D Auths are scheduled 1:1
|None
|[[User:Newfatmike|Mike Thompson]]
|-
|-
|[[Shopbot PRS CNC router]]
|Regularly scheduled - check the [https://pumpingstationone.org/events/ Events Calendar]. There is also a helpful but not required [https://canvas.pumpingstationone.org/courses/69 Canvas course] going over the basics of 2D CAD using Inkscape.
|None
|David Earl
|-
|[[Tormach 1100 series CNC mill]]
|See the [https://canvas.pumpingstationone.org/courses/30 Canvas course] for authorization information
|Cold Metals general auth, Bridgeport auth
|[[User:Berky93|Alex Berkowitz]]
|}

==2D Printing==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938421476720641 #2d-printing] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
| [https://wiki.pumpingstationone.org/wiki/Mimaki_CJV30-160 Mimaki CJV30-160]
|[https://canvas.pumpingstationone.org/courses/91 Complete the Canvas Course]
|-
|[[Epson Stylus Pro 9800 | Epson Stylus Pro 9800 Large-format Printer]]
|[https://wiki.pumpingstationone.org/Volunteer_Positions#2D_Printers Contact 2D Printing Area Host]
|}

==Graphic Arts & Textiles==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938360394809489 #arts-general] on [[Discord]].

==== Sewing Machines====
No authorization is required for domestic sewing machines located under the big table. Industrial sewing machines along the wall and windows require authorization.

{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|Tier 1 Sewing Machines (Juki serger, Juki straight stitch, Singer zig-zag, Juki cylinder arm)
|Check [https://discord.com/channels/1270929620224704544/1285119362830831676#sewing #sewing] for upcoming auths
|-
|Leather Sewing Machines (Cowboy heavy duty stitcher, Adler patcher, Juki cylinder arm)
|Check [https://discord.com/channels/1270929620224704544/1285119362830831676 #sewing] for upcoming auths
|-
|Embroidery Machine
|Check [https://discord.com/channels/1270929620224704544/1271315999664242719 #embroidery] for upcoming auths
|}
==Electronics ==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270933607011057776 #⚡-electronics-general] on [[Discord]].

The Electronics area currently has no authorizations. However, the parts provided in Electronics aren't free. Please make a donation in the lockbox on the left side of the parts wall for anything you take.
==Kitchen==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938143948013699 #kitchen-general] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
| '''How to Schedule Authorization'''
|'''Prerequisites'''
|'''Authorizer(s)'''
|-
|[[Java Master 2002 Coffee Roaster]]
|Look for the Current Authorizations thread in the #coffee channel on Discord.
|Acquire 1 lb green coffee beans, which can be done at [https://www.sweetmarias.com/ Sweet Maria’s]
|Riley Pierce (@rpierce on Discord) & Dave Ciepluch (@tmnyhbs on Discord)
|}

=New Authorization Course Info Box=
Check out the [[Template:AuthorizationCourseInfo|Template:Au]]__FORCETOC__
__NOEDITSECTION__[[Template:AuthorizationCourseInfo|thorizationCourseInfo]] page for information on how to use the new template.

<table style="background: Crimson; border: 1px solid Black; width=100% ; " align="center"><tr>
<td style="vertical-align: top; padding: 0px 20px 0px 20px; ">
<span style="font-size: 150%; font-weight: bold; color: White ; ">EXAMPLE:</span><br>
{{:Authorizations/Hot Air Balloon}}
</td></tr></table><br>

Java Master 2002 Coffee Roaster

2026-02-27T20:00:14Z

Tmnyhbs: /* List of Currently Authorized Users */

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==

This list has been migrated to Deep Harbor. If you don't see your authorization listed in your profile in the member portal, please reach out on Discord!

<div class="toccolours mw-collapsible mw-collapsed">'''Archived List of Authorized Users
<div class="mw-collapsible-content">
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
!Updated in DH
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|X
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|X
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|X
|-
|Ron Olson
|Riley Pierce
|11/16/22
|X
|-
|Dan Wells
|Riley Pierce
|11/16/22
|X
|-
|James Lamken
|Riley Pierce
|11/16/22
|X
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|X
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|X
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|X
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|X
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|X
|-
|William Shehan
|Riley Pierce
|1/5/23
|X
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|Not found
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|X
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|X
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|X
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|X
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|X
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|X
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|X
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|X
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|X
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|X
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|X
|-
|James Nowell
|Riley Pierce
|6/7/23
|X
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|X
|-
|David Henderson
|Riley Pierce
|7/23/23
|X
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|X
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|X
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|X
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|X
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|X
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|X
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|X
|-
|John Jegerski
|Riley Pierce
|11/13/23
|X
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|X
|-
|Dan Tan
|Riley Pierce
|11/13/23
|X
|-
|Burton Kent
|Riley Pierce
|12/9/23
|X
|-
|Brent Myers
|Riley Pierce
|1/10/24
|X
|-
|Molly Williford
|Riley Pierce
|1/10/24
|X
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|X
|-
|Saad Ali
|Riley Pierce
|1/10/24
|X
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|X
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|X
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|X
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|X
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|X
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|X
|-
|Books
|Riley Pierce
|10/17/24
|X
|-
|Joe Somers
|Riley Pierce
|10/17/24
|X
|-
|Caleb Schemmel
|Riley Pierce
|10/17/24
|X
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|X
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|X
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|X
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|X
|-
|Janais Peace
|Riley Pierce
|1/28/25
|X
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|X
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|X
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|X
|-
|Moid Ali
|Riley Pierce
|5/13/25
|X
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|X
|-
|David Carlson
|Riley Pierce
|5/13/25
|X
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|X
|-
|Daf Miller
|Riley Pierce
|9/28/25
|X
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|X
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|X
|-
|Wren Parker
|Riley Pierce
|9/28/25
|X
|-
|Mickey Price
|Riley Pierce
|11/10/25
|X
|-
|Knute Martell
|Riley Pierce
|11/10/25
|X
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|X
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|X
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|X
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|X
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|X
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|X
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|X
|}
</div></div>

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Java Master 2002 Coffee Roaster

2026-02-27T19:51:02Z

Tmnyhbs: /* List of Currently Authorized Users */

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
<div class="toccolours mw-collapsible mw-collapsed">'''Archived List of Authorized Users
<div class="mw-collapsible-content">
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
!Updated in DH
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|X
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|X
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|X
|-
|Ron Olson
|Riley Pierce
|11/16/22
|X
|-
|Dan Wells
|Riley Pierce
|11/16/22
|X
|-
|James Lamken
|Riley Pierce
|11/16/22
|X
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|X
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|X
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|X
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|X
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|X
|-
|William Shehan
|Riley Pierce
|1/5/23
|X
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|Not found
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|X
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|X
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|X
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|X
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|X
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|X
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|X
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|X
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|X
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|X
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|X
|-
|James Nowell
|Riley Pierce
|6/7/23
|X
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|X
|-
|David Henderson
|Riley Pierce
|7/23/23
|X
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|X
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|X
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|X
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|X
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|X
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|X
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|X
|-
|John Jegerski
|Riley Pierce
|11/13/23
|X
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|X
|-
|Dan Tan
|Riley Pierce
|11/13/23
|X
|-
|Burton Kent
|Riley Pierce
|12/9/23
|X
|-
|Brent Myers
|Riley Pierce
|1/10/24
|X
|-
|Molly Williford
|Riley Pierce
|1/10/24
|X
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|X
|-
|Saad Ali
|Riley Pierce
|1/10/24
|X
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|X
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|X
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|X
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|X
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|X
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|X
|-
|Books
|Riley Pierce
|10/17/24
|X
|-
|Joe Somers
|Riley Pierce
|10/17/24
|X
|-
|Caleb Schemmel
|Riley Pierce
|10/17/24
|X
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|X
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|X
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|X
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|X
|-
|Janais Peace
|Riley Pierce
|1/28/25
|X
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|X
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|X
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|X
|-
|Moid Ali
|Riley Pierce
|5/13/25
|X
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|X
|-
|David Carlson
|Riley Pierce
|5/13/25
|X
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|X
|-
|Daf Miller
|Riley Pierce
|9/28/25
|X
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|X
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|X
|-
|Wren Parker
|Riley Pierce
|9/28/25
|X
|-
|Mickey Price
|Riley Pierce
|11/10/25
|X
|-
|Knute Martell
|Riley Pierce
|11/10/25
|X
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|X
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|X
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|X
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|X
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|X
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|X
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|X
|}
</div></div>

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Java Master 2002 Coffee Roaster

2026-02-27T19:49:32Z

Tmnyhbs:

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
!Updated in DH
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|X
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|X
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|X
|-
|Ron Olson
|Riley Pierce
|11/16/22
|X
|-
|Dan Wells
|Riley Pierce
|11/16/22
|X
|-
|James Lamken
|Riley Pierce
|11/16/22
|X
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|X
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|X
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|X
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|X
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|X
|-
|William Shehan
|Riley Pierce
|1/5/23
|X
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|Not found
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|X
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|X
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|X
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|X
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|X
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|X
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|X
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|X
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|X
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|X
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|X
|-
|James Nowell
|Riley Pierce
|6/7/23
|X
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|X
|-
|David Henderson
|Riley Pierce
|7/23/23
|X
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|X
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|X
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|X
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|X
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|X
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|X
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|X
|-
|John Jegerski
|Riley Pierce
|11/13/23
|X
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|X
|-
|Dan Tan
|Riley Pierce
|11/13/23
|X
|-
|Burton Kent
|Riley Pierce
|12/9/23
|X
|-
|Brent Myers
|Riley Pierce
|1/10/24
|X
|-
|Molly Williford
|Riley Pierce
|1/10/24
|X
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|X
|-
|Saad Ali
|Riley Pierce
|1/10/24
|X
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|X
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|X
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|X
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|X
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|X
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|X
|-
|Books
|Riley Pierce
|10/17/24
|X
|-
|Joe Somers
|Riley Pierce
|10/17/24
|X
|-
|Caleb Schemmel
|Riley Pierce
|10/17/24
|X
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|X
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|X
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|X
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|X
|-
|Janais Peace
|Riley Pierce
|1/28/25
|X
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|X
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|X
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|X
|-
|Moid Ali
|Riley Pierce
|5/13/25
|X
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|X
|-
|David Carlson
|Riley Pierce
|5/13/25
|X
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|X
|-
|Daf Miller
|Riley Pierce
|9/28/25
|X
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|X
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|X
|-
|Wren Parker
|Riley Pierce
|9/28/25
|X
|-
|Mickey Price
|Riley Pierce
|11/10/25
|X
|-
|Knute Martell
|Riley Pierce
|11/10/25
|X
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|X
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|X
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|X
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|X
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|X
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|X
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|X
|}

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Java Master 2002 Coffee Roaster

2026-02-27T19:47:12Z

Tmnyhbs: /* List of Currently Authorized Users */

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
!Updated in DH
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|X
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|X
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|X
|-
|Ron Olson
|Riley Pierce
|11/16/22
|X
|-
|Dan Wells
|Riley Pierce
|11/16/22
|X
|-
|James Lamken
|Riley Pierce
|11/16/22
|X
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|X
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|X
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|X
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|X
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|X
|-
|William Shehan
|Riley Pierce
|1/5/23
|X
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|Not found
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|X
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|X
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|X
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|Not found
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|X
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|X
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|X
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|X
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|X
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|X
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|X
|-
|James Nowell
|Riley Pierce
|6/7/23
|X
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|X
|-
|David Henderson
|Riley Pierce
|7/23/23
|X
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|X
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|X
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|X
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|X
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|X
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|X
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|X
|-
|John Jegerski
|Riley Pierce
|11/13/23
|X
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|X
|-
|Dan Tan
|Riley Pierce
|11/13/23
|X
|-
|Burton Kent
|Riley Pierce
|12/9/23
|X
|-
|Brent Myers
|Riley Pierce
|1/10/24
|X
|-
|Molly Williford
|Riley Pierce
|1/10/24
|X
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|X
|-
|Saad Ali
|Riley Pierce
|1/10/24
|X
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|X
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|X
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|X
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|X
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|X
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|X
|-
|Books
|Riley Pierce
|10/17/24
|X
|-
|Joe Somers
|Riley Pierce
|10/17/24
|Not Found
|-
|Caleb Schemmer
|Riley Pierce
|10/17/24
|Not Found
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|X
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|X
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|X
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|X
|-
|Janais Peace
|Riley Pierce
|1/28/25
|X
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|X
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|X
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|X
|-
|Moid Ali
|Riley Pierce
|5/13/25
|X
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|X
|-
|David Carlson
|Riley Pierce
|5/13/25
|X
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|X
|-
|Daf Miller
|Riley Pierce
|9/28/25
|X
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|X
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|X
|-
|Wren Parker
|Riley Pierce
|9/28/25
|X
|-
|Mickey Price
|Riley Pierce
|11/10/25
|X
|-
|Knute Martell
|Riley Pierce
|11/10/25
|X
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|X
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|X
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|X
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|X
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|X
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|X
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|X
|}

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Java Master 2002 Coffee Roaster

2026-02-27T19:44:33Z

Tmnyhbs: /* List of Currently Authorized Users */

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
!Updated in DH
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|
|-
|Ron Olson
|Riley Pierce
|11/16/22
|
|-
|Dan Wells
|Riley Pierce
|11/16/22
|
|-
|James Lamken
|Riley Pierce
|11/16/22
|
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|X
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|X
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|X
|-
|William Shehan
|Riley Pierce
|1/5/23
|X
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|Not found
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|X
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|X
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|X
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|Not found
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|X
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|X
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|X
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|X
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|X
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|X
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|X
|-
|James Nowell
|Riley Pierce
|6/7/23
|X
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|X
|-
|David Henderson
|Riley Pierce
|7/23/23
|X
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|X
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|X
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|X
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|X
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|X
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|X
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|X
|-
|John Jegerski
|Riley Pierce
|11/13/23
|X
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|X
|-
|Dan Tan
|Riley Pierce
|11/13/23
|X
|-
|Burton Kent
|Riley Pierce
|12/9/23
|X
|-
|Brent Myers
|Riley Pierce
|1/10/24
|X
|-
|Molly Williford
|Riley Pierce
|1/10/24
|X
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|X
|-
|Saad Ali
|Riley Pierce
|1/10/24
|X
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|X
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|X
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|X
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|X
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|X
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|X
|-
|Books
|Riley Pierce
|10/17/24
|X
|-
|Joe Somers
|Riley Pierce
|10/17/24
|Not Found
|-
|Caleb Schemmer
|Riley Pierce
|10/17/24
|Not Found
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|X
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|X
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|X
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|X
|-
|Janais Peace
|Riley Pierce
|1/28/25
|X
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|X
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|X
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|X
|-
|Moid Ali
|Riley Pierce
|5/13/25
|X
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|X
|-
|David Carlson
|Riley Pierce
|5/13/25
|X
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|X
|-
|Daf Miller
|Riley Pierce
|9/28/25
|X
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|X
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|X
|-
|Wren Parker
|Riley Pierce
|9/28/25
|X
|-
|Mickey Price
|Riley Pierce
|11/10/25
|X
|-
|Knute Martell
|Riley Pierce
|11/10/25
|X
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|X
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|X
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|X
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|X
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|X
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|X
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|X
|}

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Java Master 2002 Coffee Roaster

2026-02-27T19:31:52Z

Tmnyhbs: Auth list migrate to DH

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
!Updated in DH
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|
|-
|Ron Olson
|Riley Pierce
|11/16/22
|
|-
|Dan Wells
|Riley Pierce
|11/16/22
|
|-
|James Lamken
|Riley Pierce
|11/16/22
|
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|
|-
|William Shehan
|Riley Pierce
|1/5/23
|
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|
|-
|James Nowell
|Riley Pierce
|6/7/23
|
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|
|-
|David Henderson
|Riley Pierce
|7/23/23
|
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|
|-
|John Jegerski
|Riley Pierce
|11/13/23
|
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|
|-
|Dan Tan
|Riley Pierce
|11/13/23
|
|-
|Burton Kent
|Riley Pierce
|12/9/23
|
|-
|Brent Myers
|Riley Pierce
|1/10/24
|
|-
|Molly Williford
|Riley Pierce
|1/10/24
|X
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|X
|-
|Saad Ali
|Riley Pierce
|1/10/24
|X
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|X
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|X
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|X
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|X
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|X
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|X
|-
|Books
|Riley Pierce
|10/17/24
|X
|-
|Joe Somers
|Riley Pierce
|10/17/24
|Not Found
|-
|Caleb Schemmer
|Riley Pierce
|10/17/24
|Not Found
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|X
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|X
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|X
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|X
|-
|Janais Peace
|Riley Pierce
|1/28/25
|X
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|X
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|X
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|X
|-
|Moid Ali
|Riley Pierce
|5/13/25
|X
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|X
|-
|David Carlson
|Riley Pierce
|5/13/25
|X
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|X
|-
|Daf Miller
|Riley Pierce
|9/28/25
|X
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|X
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|X
|-
|Wren Parker
|Riley Pierce
|9/28/25
|X
|-
|Mickey Price
|Riley Pierce
|11/10/25
|X
|-
|Knute Martell
|Riley Pierce
|11/10/25
|X
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|X
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|X
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|X
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|X
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|X
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|X
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|X
|}

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Java Master 2002 Coffee Roaster

2026-02-27T19:23:00Z

Tmnyhbs: /* List of Currently Authorized Users */ Migrating to DH

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
!Updated in DH
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|
|-
|Ron Olson
|Riley Pierce
|11/16/22
|
|-
|Dan Wells
|Riley Pierce
|11/16/22
|
|-
|James Lamken
|Riley Pierce
|11/16/22
|
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|
|-
|William Shehan
|Riley Pierce
|1/5/23
|
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|
|-
|James Nowell
|Riley Pierce
|6/7/23
|
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|
|-
|David Henderson
|Riley Pierce
|7/23/23
|
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|
|-
|John Jegerski
|Riley Pierce
|11/13/23
|
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|
|-
|Dan Tan
|Riley Pierce
|11/13/23
|
|-
|Burton Kent
|Riley Pierce
|12/9/23
|
|-
|Brent Myers
|Riley Pierce
|1/10/24
|
|-
|Molly Williford
|Riley Pierce
|1/10/24
|
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|
|-
|Saad Ali
|Riley Pierce
|1/10/24
|
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|
|-
|Books
|Riley Pierce
|10/17/24
|
|-
|Joe Somers
|Riley Pierce
|10/17/24
|
|-
|Caleb Schemmer
|Riley Pierce
|10/17/24
|
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|
|-
|Janais Peace
|Riley Pierce
|1/28/25
|
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|X
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|X
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|X
|-
|Moid Ali
|Riley Pierce
|5/13/25
|X
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|X
|-
|David Carlson
|Riley Pierce
|5/13/25
|X
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|X
|-
|Daf Miller
|Riley Pierce
|9/28/25
|X
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|X
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|X
|-
|Wren Parker
|Riley Pierce
|9/28/25
|X
|-
|Mickey Price
|Riley Pierce
|11/10/25
|X
|-
|Knute Martell
|Riley Pierce
|11/10/25
|X
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|X
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|X
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|X
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|X
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|X
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|X
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|X
|}

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Java Master 2002 Coffee Roaster

2026-02-25T19:20:16Z

Tmnyhbs: Authorization section added

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

=== Authorizations ===
Looking to get authorized? Head on over to our [https://discord.com/channels/1270929620224704544/1276032751363162112 Discord Server in the #Coffee Channel] for the latest info!

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|-
|Ron Olson
|Riley Pierce
|11/16/22
|-
|Dan Wells
|Riley Pierce
|11/16/22
|-
|James Lamken
|Riley Pierce
|11/16/22
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|-
|William Shehan
|Riley Pierce
|1/5/23
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|-
|James Nowell
|Riley Pierce
|6/7/23
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|-
|David Henderson
|Riley Pierce
|7/23/23
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|-
|John Jegerski
|Riley Pierce
|11/13/23
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|-
|Dan Tan
|Riley Pierce
|11/13/23
|-
|Burton Kent
|Riley Pierce
|12/9/23
|-
|Brent Myers
|Riley Pierce
|1/10/24
|-
|Molly Williford
|Riley Pierce
|1/10/24
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|-
|Saad Ali
|Riley Pierce
|1/10/24
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|-
|Books
|Riley Pierce
|10/17/24
|-
|Joe Somers
|Riley Pierce
|10/17/24
|-
|Caleb Schemmer
|Riley Pierce
|10/17/24
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|-
|Janais Peace
|Riley Pierce
|1/28/25
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|-
|Moid Ali
|Riley Pierce
|5/13/25
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|-
|David Carlson
|Riley Pierce
|5/13/25
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|-
|Daf Miller
|Riley Pierce
|9/28/25
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|-
|Wren Parker
|Riley Pierce
|9/28/25
|-
|Mickey Price
|Riley Pierce
|11/10/25
|-
|Knute Martell
|Riley Pierce
|11/10/25
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|-
|Jesse Bernstein
|Riley Pierce
|2/22/25
|-
|Ethan Jantz
|Riley Pierce
|2/22/25
|}

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Authorizations

2026-02-25T17:36:20Z

Tmnyhbs: Updated coffee authorizers

{{ambox|type=content|text=<span style="color:#800000">'''Notice, March 2024 -</span> Confirm authorizations on [[Discord]] first'''<br>
Post pandemic, we're (slowly) updating old authorization info. If there's a <span style="color: SteelBlue ;font-weight: bold; ">blue Authorization Course Info box</span> on this page or a tool's page, the authorization course info in that box should be up-to-date. Otherwise, any other info you find should be considered out of date. Confirm in the appropriate area channel on Discord if the info is correct or not.}}
==What is an authorization?==
[[File:Authorization-required.png|thumb]]
[[File:Sample auth sticker.png|thumb]]
'''Any tool more dangerous than a soldering iron requires authorization before use''', these are marked with an "Authorization Required - Do Not Hack" sticker like the one pictured. Authorizations are how we keep each other safe and maintain our tools for the community, this is why '''authorizations are still required even if a member has prior knowledge of how to use a specific tool'''. ''Be cool, get authed''.

Note that the process for getting authorized varies greatly between different tools/areas, affected by:

<li> Whether a canvas course exists or not.
<li> How frequently people are interested in a specific authorization. Some are scheduled, some are at member's requests, some are "we haven't done this in awhile".
<li> The authorizer's preferred method of contact.

===I want to get authorized, the crash course===
<ol><li> '''Read''' [[How Do I Get Authorized?]]
<li> '''Find''' the authorization info in one of these ways:
<ul><li> Scan the QR on the "Authorization Required" sticker on the tool, see example above
<li> Search for the tool's wiki page
<li> Or look through the list on this page
<li> <li>
</ul>
<li>'''Follow the instructions in the blue authorization notice box''', see example below
<ul><li> If the blue authorization notice box is missing, ask on [[Discord]] for confirmation the instructions on the page are still accurate</li>
<li>Some authorizations are regularly scheduled while others are by appointment. To schedule a by appointment authorization, members may post in the relevant [[Discord]] channel, or contact a volunteer authorizer directly.</li>
<li>Note that authorizations requiring a Canvas course, only show you the schedule after you complete the course. Even then sometimes (especially Woodshop) the authorizations are booked up for that month.</li></ul>
<li> '''Complete the authorization'''
<li> Required: '''Make something cool!'''
</ol>

Please help us out by letting area hosts (or [https://discord.com/channels/1270929620224704544/1308619569828593775 #wiki-love]) know if the information on this page needs to be updated. You are also welcome to update this wiki page yourself. Thanks!

__TOC__

==[[:Category:Wood Shop|Woodshop]]==
[[File:Woodshop clean.png|thumb]]
<section begin="woodshop"/>
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270939083685892229 #woodshop-general] on [[Discord]].

The Woodshop Basic course only covers the tools listed in the blue info box below, it does not cover specialty tools listed further down. Keep in mind the Woodshop Basic course is a required prerequisite for all other woodshop specialty tool authorizations.
===Woodshop Basic===
{{:Authorizations/Woodshop Basic}}

===Woodshop Special Tools===
{{:Authorizations/Sweet 16 Wood Lathe}}

{{:Authorizations/Delta Tenoning Jig}}

{{:Authorizations/Advanced Bandsaw, Resawing and Maintenance}}

{{:Authorizations/SawStop Dado Stack}}
<section end="woodshop"/>
==Small Metals==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938338760724573 #small-metals-general] on [[Discord]].

All small metals authorizations are by-request.
{| class="wikitable sortable"
|-
! scope="col" |Area
! scope="col" |Authorization
! scope="col" |Contact
|-
|Small Metals
|Basic Authorization
| [[Volunteer Positions#Small Metals Authorizer|Small Metals Authorizers]]
|-
|Small Metals
|Casting
|[[Volunteer Positions#Small Metals Authorizer|Small Metals Authorizers]]
|-
|Small Metals
|Hydraulic Press
|[[Volunteer Positions#Small Metals Authorizer|Small Metals Authorizers]]
|}
Ask for dates and times in [https://discord.com/channels/1270929620224704544/1270938338760724573 #small-metals-general] on [[Discord]].

Please review the wiki pages: '''[[Acetylene_Air_Torch_Jewelry]]''', '''[[Evenheat_810_Kiln]]''', '''[[AIM_Kiln_1413]]''' and '''[[Dyna_Kiln_N100]]'''

==Cold Metals==
Need help? Questions? [https://discord.com/channels/1270929620224704544/1270939023392903228 #cold-metals-general] on [[Discord]].

All small metals authorizations are by-request.

===[[Tier 1 Cold Metals Authorization]]===
Authorizations for many of the most commonly used metal tools, including the drill press, [[Rockwell Delta 20" Bandsaw|bandsaw]], [[Johnson Bandsaw|Johnson bandsaw]], [[DeWalt Chop Saw|chop saw]], [[Belt Sander|belt sander]], [[Bench Grinder (6in)|bench grinder]], and [[Angle Grinder (4.5in)|angle grinders]], are bundled together into a single session.

The following table generally requires completion of Tier 1 prior to authorization.

{| class="wikitable sortable"
|-
! scope="col" |Area
! scope="col" |Authorization
! scope="col" |Contact
|-
|Cold Metals
|Clausing Metal Lathe
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
|LeBlond Metal Lathe
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
| Cold Metals
|Bridgeport Knee Mill
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
| Grizzly Mini Metal Lathe
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
| Surface Grinder
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|-
|Cold Metals
|Baldor 510 Tool Grinder
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Cold_Metals_Authorizers Cold Metals Authorizers]
|}
==Hot Metals ==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938266794721301 #hotmetalshop] on [[Discord]].

The Hot Metals general auth is a prerequisite for all other authorizations in this area, in addition to any listed prerequisites. Additionally there is a recommended [https://canvas.pumpingstationone.org/courses/65 Canvas course] to help you become familiar with all things Hot Metal.
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|Hot Metals general auth
|[https://wiki.pumpingstationone.org/Volunteer_Positions#Hot_Metals_Authorizers Hot Metals Authorizers]
|-
|[[Big Blasting Cabinet]]
|Contact an Authorizer to set up a time
|-
| [[Belovac Vacuum Forming Machine]]
|[[Viral Authorizations]], Post request to [https://discord.com/channels/1270929620224704544/1270938266794721301 #hotmetalshop] on [[Discord]]
|-
|Powder Coating
|Contact an Authorizer to set up a time
|-
|MIG Welder
|Auths available during office hours - check the [https://pumpingstationone.org/events/ Events Calendar]
|-
|TIG Welder
|Contact an authorizer to set up a time
|-
|[[CNC Plasma Cutter]]
|Regularly scheduled - check the [https://pumpingstationone.org/events/ Events Calendar]
|-
|Handheld Plasma Cutter
|Auths available during office hours - check the [https://pumpingstationone.org/events/ Events Calendar]
|-
|[[Blacksmithing_Area | Blacksmithing/Forges]]
|Auths available during office hours - check the [https://pumpingstationone.org/events/ Events Calendar]
|}

==CNC - Lasers==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270939157484539935 #lasers] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|[[Universal PLS6.150D 150W Laser Engraver]]
|[https://wiki.pumpingstationone.org/Universal_PLS6.150D_150W_Laser_Engraver#Authorization:_How_to_Get_Authorized Contact Lasers Authorizers]
|-
|[[BOSS LS-3655 150w Laser Engraver]]
|[https://wiki.pumpingstationone.org/BOSS_LS-3655_150w_Laser_Engraver#Authorization Contact Lasers Authorizers]
|-
|[[Universal Maintenance | Universal Laser Maintenance]]
|[https://wiki.pumpingstationone.org/Universal_PLS6.150D_150W_Laser_Engraver#Authorization:_How_to_Get_Authorized Contact Lasers Authorizers]
|-
|[[BOSS Maintenance | Boss Laser Maintenance]]
|[https://wiki.pumpingstationone.org/BOSS_LS-3655_150w_Laser_Engraver#Authorization Contact Lasers Authorizers]
|}

==CNC - 3D Resin (SLA) Printers==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1286074409177714708 #3d-sla-printing] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|[[Formlabs Form 3 SLA Printer | Form 3 SLA 3D printer]]
|There are no authorizations for the SLA printers. Instead, ask the Specialty 3D Area host in [https://discord.com/channels/1270929620224704544/1286074409177714708 Discord]. You will need to supply your file(s) for printing by emailing to specialty3d@pumpingstationone.org. Resin is either $0.25mL or $0.50 per mL depending upon the type of resin.
|}

==CNC - 3D Filament (FDM) Printers==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/12709387556746732558 #3d-printing] on [[Discord]].

3D printers using filament only require the canvas course, no in person authorization needed.
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|[[ Prusa i3 3D printer]]
|[https://canvas.pumpingstationone.org/courses/60#Auths are online only through canvas].
|-
|[[ Creality Ender 3 A 3D Printer]]
|[https://canvas.pumpingstationone.org/courses/60#Auths are online only through canvas]. 3D printers using filament only require the canvas course.
|}

== Industrial CNC ==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270939130200850557 #cnc-general] on [[Discord]].

==== ShopBot====
There are 2 required classes for complete Shopbot Authorization. The first class is a software-only class to cover CNC concepts and the toolpath and control software. This class is unlimited capacity and generally open to the public. The software-only class is a prerequisite for the second class, the hands-on ShopBot authorization, which will be significantly shortened since it will only cover the specifics of the tool itself.

{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
| '''Prerequisites'''
|'''Authorizer(s)'''
|-
|[[ShapeOko2 CNC Router]]
|2D and 3D Auths are scheduled 1:1
|None
|[[User:Newfatmike|Mike Thompson]]
|-
|-
|[[Shopbot PRS CNC router]]
|Regularly scheduled - check the [https://pumpingstationone.org/events/ Events Calendar]. There is also a helpful but not required [https://canvas.pumpingstationone.org/courses/69 Canvas course] going over the basics of 2D CAD using Inkscape.
|None
|David Earl
|-
|[[Tormach 1100 series CNC mill]]
|See the [https://canvas.pumpingstationone.org/courses/30 Canvas course] for authorization information
|Cold Metals general auth, Bridgeport auth
|[[User:Berky93|Alex Berkowitz]]
|}

==2D Printing==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938421476720641 #2d-printing] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
| [https://wiki.pumpingstationone.org/wiki/Mimaki_CJV30-160 Mimaki CJV30-160]
|[https://canvas.pumpingstationone.org/courses/91 Complete the Canvas Course]
|-
|[[Epson Stylus Pro 9800 | Epson Stylus Pro 9800 Large-format Printer]]
|[https://wiki.pumpingstationone.org/Volunteer_Positions#2D_Printers Contact 2D Printing Area Host]
|}

==Graphic Arts & Textiles==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938360394809489 #arts-general] on [[Discord]].

==== Sewing Machines====
No authorization is required for domestic sewing machines located under the big table. Industrial sewing machines along the wall and windows require authorization.

{| class="wikitable"
|'''Machine/Area Name'''
|'''How to Schedule Authorization'''
|-
|Tier 1 Sewing Machines (Juki serger, Juki straight stitch, Singer zig-zag, Juki cylinder arm)
|Check [https://discord.com/channels/1270929620224704544/1285119362830831676#sewing #sewing] for upcoming auths
|-
|Leather Sewing Machines (Cowboy heavy duty stitcher, Adler patcher, Juki cylinder arm)
|Check [https://discord.com/channels/1270929620224704544/1285119362830831676 #sewing] for upcoming auths
|-
|Embroidery Machine
|Check [https://discord.com/channels/1270929620224704544/1271315999664242719 #embroidery] for upcoming auths
|}
==Electronics ==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270933607011057776 #⚡-electronics-general] on [[Discord]].

The Electronics area currently has no authorizations. However, the parts provided in Electronics aren't free. Please make a donation in the lockbox on the left side of the parts wall for anything you take.
==Kitchen==
Need help? Questions? Try [https://discord.com/channels/1270929620224704544/1270938143948013699 #kitchen-general] on [[Discord]].
{| class="wikitable"
|'''Machine/Area Name'''
| '''How to Schedule Authorization'''
|'''Prerequisites'''
|'''Authorizer(s)'''
|-
|[[Java Master 2002 Coffee Roaster]]
|Look for the Current Authorizations thread in the #coffee channel on Discord.
|Acquire 1 lb green coffee beans, which can be done at [https://www.sweetmarias.com/ Sweet Maria’s]
|Riley Pierce (@rpierce on Discord) & Dave Ciepluch (@tmnyhbs on Discord)
|}

=New Authorization Course Info Box=
Check out the [[Template:AuthorizationCourseInfo|Template:Au]]__FORCETOC__
__NOEDITSECTION__[[Template:AuthorizationCourseInfo|thorizationCourseInfo]] page for information on how to use the new template.

<table style="background: Crimson; border: 1px solid Black; width=100% ; " align="center"><tr>
<td style="vertical-align: top; padding: 0px 20px 0px 20px; ">
<span style="font-size: 150%; font-weight: bold; color: White ; ">EXAMPLE:</span><br>
{{:Authorizations/Hot Air Balloon}}
</td></tr></table><br>

Java Master 2002 Coffee Roaster

2026-02-07T19:22:50Z

Tmnyhbs: /* List of Currently Authorized Users */

{{Template:EquipmentPage
|owner = Theo Tetzlaff
|Loaned Tool Agreement = yes
|hostarea = Kitchen
|certification = yes
|hackable = no
|model = Java Master 2002
|serial = 2736
|arrived = June 2022
|where = Kitchen
|doesitwork=yes
|contact = Theo Tetzlaff
|value = $7,500
|image = JavaMaster2002.jpg
}}

== Description ==
This is a Java Master 2002 fluid bed coffee roaster, capable of roasting up to 3.5 lbs green beans per batch.

=== Loaned Tool ===
This is an official loaned tool with an active agreement on file accepted by a board member May 8th 2023.

== Roast Profile ==
Roasting Profiles refer broadly to important parameters and conditions of the roasting process. The roasting process is a process of caramelization and carbonization called a Maillard Reaction. Some important roast parameters include:
* Temperature at beginning of roast
* Temperature at ending of roast
* Total Duration of roast
* Rate of Rise in temperature over total duration and specific periods of roast
* ‘Development’ of roast at specific temperatures during specific sequences of the roast
* Degree of ‘crack’ achieved in the bean (i.e. First, Second)
* Color achieved
* Speed of air cooling of beans (this part is a significant contributor to ‘sweetness’ in the cup)

In general, coffee sugars are made accessible by roasting, but the caramelization process also reduces perceptual sweetness over roast time at a similar degree of roast. Additionally caffeine content lowers over time with off-gassing from longer roasts. Acidity also tends to lessen over time past City+ and into Full City/Second Crack, until carbonic acidity eventually raises in the darkest roasts. Roasters aim for a consistent rate of rise over time, just as with making caramel, so that the caramelization process does not stop and start haltingly, which will reduce perceptual sweetness as well and lead to uneven bean development.

'''Roasting on the Java Master'''

Roasting on the Java Master is determined by two separate controlled parameters: hot air temperature and bean temperature. Hot air temperature is set on the left PID controller. It should be adjusted based on the bean weight to be roasted and the desired speed of roast, and is the temperature of the air entering the roast chamber. More beans require more heat to roast at the same speed. Target bean temperature is set on the right PID controller, and corresponds to the temperature of the air exiting the chamber. When this temperature is reached, the machine begins its cool down cycle. Note that this number is a significant underestimate of the actual bean temperature, but it provides an easily measured parameter for when to end the roast. This temperature can also be adjusted while the roast is in progress to prolong or end the roast earlier, but note that the PID controller takes several seconds to recognize the change.

Suggested roasting parameters:

Hot air temperature range is 530-575 F on the controller. For 1-2 lbs, it should be set close to 530 F. For 2-3.5 lbs, it should be set between 540-560.

Target bean temperature can be set between 370-445 F. This parameter determines the darkness of the roast. Suggested starting points for experimentation:

* City (first crack complete) - 375 F.
* City+ (significant development beyond first crack) - 380 F to 390 F.
* Full City (right before second crack) - 400 F (may be higher.)
* Full City+ (some but not all beans have gone through second crack - 415 F.
* Second crack complete - 420 F.
* French roast - 425 F?

Additional efforts are being made for us to be able to ‘log’ roasts as temperature over time graphs, in order to compare roast profiles for individual beans and measure outcomes.

== Operation Checklist ==

* Turn Power on
* Check (and, if necessary, empty) chaff collector
* Turn on exhaust fan (switch on wall to the right of the machine)
* Set air and bean temperatures (530 and 400 are good starter numbers)
* Put hopper in place over the blower vents
* Pour in beans
* Make certain the top cap is in place
* Turn Heat on
* Press the Run button
* Hot air heats up beans, eventually beans reach set Bean temperature
* Machine turns off heat, cooling water starts, machine continues to blow air to cool down beans
* Wait for the machine to stop blowing air.
* Pull the handle to dispense beans
* Bag the beans
* Turn off Heat and Power switches
* Turn off exhaust fan

If you are in a hurry and don't want to wait for the machine to cool the beans down:

*Wait for bean temp to drop below 370 F, at which point yellow Reset lamp lights.
*Press the Stop button.
*Pull the handle to dispense beans into hopper immediately after the beans stop moving. (Leaving them sit still too long is a fire risk.)
*Give the beans a sideways shake in the hopper and let the air vents under the hopper cool the beans.

== Safety ==

* '''Never run a roast unattended!''' (Please!)
* Do not roast anything other than green coffee beans.
* Roasting beans that already have been roasted is a fire hazard.
* Minimum and maximum load are 1 - 3.5 lbs green beans.
* Make sure the chaff collector has adequate space. Empty it regularly.
* Do not operate without water (this is permanently installed now so it should be fine.)
* Do not operate without the exhaust blower turned on.
* Beans above 300 F, without cooling air flow or not in motion in the roaster, can catch fire. Stopping the roast is therefore bad. A power outage during a roast is also bad. The roast should be allowed to complete.
* The roast can safely be stopped once bean temperature reaches the target, the cooling cycle engages, and the beans drop to 370 F. When this happens, the yellow Reset light will illuminate. Beans can be allowed to cool in the chamber, or the roast stopped with the Stop button and the beans then immediately dumped into the cooling hopper by using the lever. Fans on the tabletop in front of the roaster will blow cooling air over the roast beans. Beans will cool in the hopper via cooling fans within about 3-4 minutes after roast.
* '''A manual valve is located on the left side of the machine, which will trigger a water sprayer to flood the chamber. Use this only in case of a bean fire in the chamber.'''
* Should temperature rise in the chamber uncontrollably, the system will automatically engage the water sprayer. Disable, when any fire is put out, with the Reset button.
* No roast should take more than 15 minutes. A timer will halt a roast after 15 minutes. Larger quantities of beans roasted darker may need higher air temperature to ensure the target is reached before 15 minutes.
* The front external parts of the roaster may get very hot in operation, especially continuous operation. Do not touch hot metal. Please.
* Do not use the roaster for high volume commercial production. This is expensive and on loan. Let’s not PS1 it, okay?

== List of Currently Authorized Users ==
{| class="wikitable" border="1"
! Qualified Member
! Trained By
! Date
|-
|Theo Tetzlaff
|Owner/Why would I do this to myself?
|
|-
|Riley Pierce
|Danger Committee/Manager/Trainer/BAMF
|
|-
|Carl Karsten
|Riley Pierce
|11/9/22
|-
|Ron Olson
|Riley Pierce
|11/16/22
|-
|Dan Wells
|Riley Pierce
|11/16/22
|-
|James Lamken
|Riley Pierce
|11/16/22
|-
|Claire Fiorino
|Theo Tetzlaff
|11/20/22
|-
|Ian Sampson
|Theo Tetzlaff
|11/20/22
|-
|Joseph Staffa
|Riley Pierce
|12/14/22
|-
|Andrew Wingate
|Riley Pierce
|1/3/23
|-
|Elizabeth Koprucki
|Riley Pierce
|1/4/23
|-
|William Shehan
|Riley Pierce
|1/5/23
|-
|Laura Sparks
|Riley Pierce
|1/5/23
|-
|Patrick Mahon
|Theo Tetzlaff
|1/18/23
|-
|Ryan Mata
|Riley Pierce
|2/8/23
|-
|Dan Walsh
|Riley Pierce
|3/1/23
|-
|Ryan Helsing
|Riley Pierce
|3/29/23
|-
|David Earl
|Theo Tetzlaff
|Riley Pierce (refresher 9/8/23)
|-
|Jordan Kessel
|Theo Tetzlaff
|4/16/23
|-
|Aaron VerDow
|Theo Tetzlaff
|4/16/23
|-
|Jonathan Bisson
|Theo Tetzlaff
|5/3/23
|-
|Lucas Alvarez
|Theo Tetzlaff
|5/3/23
|-
|Bryan Sills
|Theo Tetzlaff
|5/3/23
|-
|Adam Stafford
|Riley Pierce
|5/17/23
|-
|James Nowell
|Riley Pierce
|6/7/23
|-
|Paulina Hubli
|Riley Pierce
|7/1/23
|-
|David Henderson
|Riley Pierce
|7/23/23
|-
|Jim Leonardson
|Riley Pierce
|9/13/23
|-
|Elizabeth Braun
|Riley Pierce
|9/13/23
|-
|Matthew Gaffney
|Riley Pierce
|9/13/23
|-
|Tam Ragatz
|Riley Pierce
|9/13/23
|-
|Stephen Metzel
|Riley Pierce
|9/27/23
|-
|Scott Yoder
|Riley Pierce
|9/27/23
|-
|Paul Johnson
|Riley Pierce
|11/13/23
|-
|John Jegerski
|Riley Pierce
|11/13/23
|-
|Nathan Dietz
|Riley Pierce
|11/13/23
|-
|Dan Tan
|Riley Pierce
|11/13/23
|-
|Burton Kent
|Riley Pierce
|12/9/23
|-
|Brent Myers
|Riley Pierce
|1/10/24
|-
|Molly Williford
|Riley Pierce
|1/10/24
|-
|Thomas Repasky
|Riley Pierce
|1/10/24
|-
|Saad Ali
|Riley Pierce
|1/10/24
|-
|Cris Sievenpiper
|Riley Pierce
|1/10/24
|-
|Nick Hawley
|Riley Pierce
|7/29/24
|-
|Eric Brodersen
|Riley Pierce
|7/29/24
|-
|Joshua Woodard
|Riley Pierce
|7/29/24
|-
|Cameron Petti
|Riley Pierce
|7/29/24
|-
|Eric Parsons
|Riley Pierce
|7/29/24
|-
|Books
|Riley Pierce
|10/17/24
|-
|Joe Somers
|Riley Pierce
|10/17/24
|-
|Caleb Schemmer
|Riley Pierce
|10/17/24
|-
|Eric Schoonhoven
|Riley Pierce
|1/5/25
|-
|Benjamin Klosky
|Riley Pierce
|1/5/25
|-
|Kevin wolff
|Riley Pierce
|1/28/25
|-
|Breezy Fasano
|Riley Pierce
|1/28/25
|-
|Janais Peace
|Riley Pierce
|1/28/25
|-
|Ren Blanding
|Riley Pierce
|1/28/25
|-
|Carlos Aranibar
|Riley Pierce
|1/28/25
|-
|Cameron Murphy
|Riley Pierce
|5/13/25
|-
|Moid Ali
|Riley Pierce
|5/13/25
|-
|Adam Henderson
|Riley Pierce
|5/13/25
|-
|David Carlson
|Riley Pierce
|5/13/25
|-
|Lucas Nelson
|Riley Pierce
|5/13/25
|-
|Daf Miller
|Riley Pierce
|9/28/25
|-
|Jack Van Boom
|Riley Pierce
|9/28/25
|-
|Jack Galbraith
|Riley Pierce
|9/28/25
|-
|Wren Parker
|Riley Pierce
|9/28/25
|-
|Mickey Price
|Riley Pierce
|11/10/25
|-
|Knute Martell
|Riley Pierce
|11/10/25
|-
|Dave Ciepluch
|Ron Olson
|1/11/26
|-
|Sam Dreyfuss
|Riley Pierce
|1/24/26
|-
|Andrew Hromadka
|Riley Pierce
|1/24/26
|-
|Stephen Seyer
|Riley Pierce
|2/3/26
|-
|Bram Kineman
|Riley Pierce
|2/3/26
|}

== Green Coffee Bean Suppliers ==
* Sahar International Supermarket - Albany Park (2 miles North of PS1) [https://maps.app.goo.gl/C2GzQn4xJR5A48VV7 4851 N Kedzie Ave, Chicago, IL 60625] - http://saharbrand.com/
* [https://javamaster.com/collections/coffee JavaMaster] - Sells in 3.5, 10, and 40 lbs quantities.
* [https://www.sweetmarias.com/ Sweet Maria’s] - Sells in 1, 2, 5, 10, and 20 lbs quantities.
* [https://www.coffeeshrub.com/ Coffee Shrub] - Larger volume sister company to Sweet Maria’s.
* [https://www.isabella.coffee/ Isabella Imports] - Sells in 1 lb increments. A Galena, IL based company that has some interesting selections.
* [https://deansbeans.com/collections/green-unroasted-coffee-beans Dean’s Beans] - Some good selections available.
* [https://www.Amazon.com/ Amazon, gourmet foods section] - yes… Amazon.
* [https://coffeeandtea.com/ Coffee & Tea Exchange] - Local Chicago store on Broadway that will sell green beans.

''Please note, of these, I really can’t stress enough how generally superior and much more transparent + informative I find Sweet Maria’s compared to everywhere else. -Theo''

''Sweet Maria’s is great for the beginning roaster because they provide highly detailed cupping notes, suggestions on what level of roast to use, and their opinion on whether something would make good espresso. But the quality of the beans is a function of the grower, not the importer, and a big part of this adventure is discovery and experimentation. So I’d suggest eventually branching out and trying other importers once you have some experience under your belt. -Riley’'

== Maintenance ==
{| class="wikitable" border="1"
! Task
! Date
! Done by
! Notes
|-
|Clean two exhaust thermocouples
|2/3/26
|Riley
|
|-
|
|10/17/24
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|05/27/23
|Riley
|
|-
|
|10/26/22
|Ron and Riley
|
|-
|Clean glass chamber
|2/3/26
|Riley
|
|-
|
|12/30/23
|Ron and Riley
|
|-
|
|07/23/23
|Riley and David Henderson
|
|-
|
|02/20/23
|Theo
|
|-
|
|12/21/22
|Riley
|
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Clean upper duct
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Vacuum clean air intake filter
|10/26/22
|Riley
|
|-
|Clean lower dump valve
|12/21/22
|Riley
|Spot cleaning only
|-
|
|10/24/22
|Theo and Riley
|Spot cleaning only
|-
|Replace upper chamber gasket
|12/21/22
|Riley
|
|-
|Clean hot air thermocouple
|10/26/22
|Riley
|
|-
|}

Nota Bene:
* We have replacement gaskets and seals now for the roast chamber + venting tubes, etc.
* Chaff collector should be checked regularly, depending on frequency and scale of roasting. Not a big deal, but consider checking chaff collector before a new roasting session and/or after roasting several times in succession with beans that give off more chaff [e.g., ‘washed’ beans].

== Technical Details ==

The roaster uses a Watlow PID controller (on the left) to control air temperature. It outputs a process value (4-20 mA), which an Avatar Instruments power controller uses to change the power to the heater via SCR phase dimming. The Avatar supports 240 V but the heater itself only can handle 208 V. This machine was designed to operate on 208 V but JavaMaster confirms it can operate on 240 V with an adjustment. Originally, JavaMaster suggested we limit the PID to 70% max output power. But that resulted in unexplained oscillations in temperature typically +/- 30 F. The Avatar includes an optional feature to limit output voltage via the V-LIM trim pot. This was adjusted so 100% on the PID corresponds to 208 V as measured by a true RMS voltmeter. If the machine is ever operated at 208 V again, it will require re-adjustment of this trim pot.

It seems the main fuse has fallen out of the fuse block in the past. We are looking for a better way to secure it.

If a roast is stopped before cooldown completes, it is possible that the PLC will get confused about roast state, and the next roast will not shut itself down. If a roast is ever aborted before cooldown, SHUT DOWN THE MACHINE before powering up and running another roast.

[[Category:Loaned Equipment]]

Just Fucking Do It

2026-01-25T18:38:16Z

Tmnyhbs:

'''Just Fucking Do It'''. Sometimes things around the space need doing. Complaining about it accomplishes nothing. Doing something about it gets it done. '''JFDI'''.

Whenever possible, stop talking and start doing. You don't need permission to do things that are obviously awesome or necessary.

This is tempered by [[Be excellent to each other]]

For more information, read this: [[Do-ocracy]]

Caveats for JFDI are commonly accepted to be: if it can be un-done in four hours or less, and if you don't expect serious objections, it's a candidate for JDFI and Do-ocracy action.

'''ADDITIONAL CAVEAT:''' '''ELECTRICAL, STRUCTURAL AND MECHANICAL SYSTEMS ARE DO NOT HACK, See GenOPs for more information or to request changes in the space.''' (See: [[Board Meeting Notes 2026-01-06]])

If you do something and know or expect there will be serious objections then you might well be acting wrongly.

Member Storage Registry

2026-01-18T20:51:30Z

Tmnyhbs: Updated Storage for Mark Ingraham C22

== Temporary Procedure as of January 2025 ==
'''New lockers were installed and are currently operating on a self serve basis while final electronic and aesthetic additions are being made to them. Make sure your stripe subscription is set to Member With Storage (accessed from the shortcuts when you login to https://membership.pumpingstationone.org), and find a locker. If it is empty, AND unlabeled, AND not claimed in the table below, then stick your name on it with a piece of tape, make sure the registry below reflects your new locker (do not remove old names without consulting MMT via info@pumpingstationone.org), and enjoy. Occasional audits take place so make sure your name is legible and matches your membership profile. If you prefer to remain anonymous, you can write your User ID instead. '''

'''Do not remove names from this list, or labels on shelves, or any items from shelves. If you believe a shelf should be open but ANY of those are present, contact info@pumpingstationone.org and ask for an audit.'''

== Catwalk Shelf Registry ==

''' -Alpha Alpha designations refer to mini shelves used for PS1 official projects '''

The catwalk is where some of our [[member leased server Systems]] infrastructure are located. Additionally, member shelves are on the catwalk.

'''Please do not store items on the catwalk, except on member shelves. Loose items will be ticketed'''

On the catwalk, numbering starts with the upper left shelf and goes down, then across.
{| class="wikitable"
| C A ||
|-
| C B ||
|-
| C C || Andrew Morris
|-
| C D ||
|-
| C E ||
|-
| C F ||
|-
| C G ||
|-
| C H ||
|-
| C I ||
|-
| C J ||
|-
| C K ||
|-
| C01 || Ron Olson
|-
| C02 || Jennie Plasterer
|-
| C03 || Andrew Locke
|-
| C04 || Josh Martin
|-
| C05 || Sam Paris
|-
| C06 || Books
|-
| C07 ||
|-
| C08 || Mike Bakula
|-
| C09 || Darlynn Cole
|-
| C10 || Mark Park
|-
| C11 || Riley Pierce
|-
| C12 || Babafemi Ekundayo
|-
| C13 || Sam Vuchetich
|-
| C14 ||Maïa Brunel
|-
| C15 || Karen Stevens
|-
| C16 || Bradley Hovanec
|-
| C17 || Diego begin
|-
| C18 || Andrew Jackson
|-
| C19 || Philip Nolan
|-
| C20 || Jordan Kessel
|-
| C21 || Patrick Stycos
|-
| C22 || Mark Ingraham
|-
| C23 ||
|-
| C24 || Nick Hawley/Woodshop Storage
|-
| C25 || Dan Wells
|-
| C26 || Sky Nova
|-
| C27 || Grant Spensley
|-
| C28 || Dan Locks
|-
| C29 || John Jegerski
|-
| C30 || Sean Blum
|-
| C31 || Jacob Dawson
|-
| C32 || David Fell
|-
| C33 || Elizabeth Koprucki
|-
| C34 || Mike Gucciard
|-
| C35 || Nick Griffith
|-
| C36 || Sam Abrahamson
|-
| C37 || Cameron Mastoran
|-
| C38 || Uwe grosse
|-
| C39 || Kobina Thatcher
|-
| C40 || Hef
|-
| C41 ||
|-
| C42 ||
|-
| C43 ||
|-
| C44 || Sean Kivlehan
|-
| C45 || Carlos Aranibar
|-
| C46 || Lydia Miller
|-
| C47 || Adam Molski
|-
| C48 || Jamin Nollsch
|-
| C49 || Joe Mertz
|-
| C50 || Charles Barker
|-
| C51 || Ben Stagl
|-
| C52 || Brian Barnt
|-
| C53 || Davis Sayer Cox
|-
| C54 || Christian Rahl
|-
| C55 || Jacob Waller
|-
| C56 || Dave Solomon
|-
| C57 || Daniel Baltudis
|-
| C58 || Carl Karsten
|-
| C59 || Brian Chojnowski
|-
| C60 || Francesco Nardulli
|-
| C61 ||
|-
| C62 || Wren Parker
|-
| C63 || Zlatan Klebic
|-
| C64 || Shauen P. of Specialty3D
|-
| C65 || Nicholas Terrell
|-
| C66 || Eddie Muela
|}

== New Locker Registry ==

The drawers between the general work area and the [[:Category:Cold_Metals|Cold Metals area]]. Drawers beginning with GA face the general area, drawers beginning with CM face the Cold Metals area. Numbers begin on the bottom left, and go up to the right, then upwards.

{| class="wikitable"
| GA 01 || Unclaimable
|-
| GA 02 || Unclaimable
|-
| GA 03 || Unclaimable
|-
| GA 04 || Unclaimable
|-
| GA 05 || Unclaimable
|-
| GA 06 || Unclaimable
|-
| GA 07 || Unclaimable
|-
| GA 08 || Unclaimable
|-
| GA 09 || Unclaimable
|-
| GA 10 || Unclaimable
|-
| GA 11 || Maria Savrosova
|-
| GA 12 || Ian Sampson
|-
| GA 13 || Carter Robinson
|-
| GA 14 || Nick Hawley
|-
| GA 15 || Franklin Walton
|-
| GA 16 || Mark Nielson
|-
| GA 17 || Harry k
|-
| GA 18 || Peggy
|-
| GA 19 || Greg Ybos
|-
| GA 20 || Andrew Locke
|-
| GA 21 || Bruno
|-
| GA 22 || Andrew masek
|-
| GA 23 ||
|-
| GA 24 || Kevin Borgia
|-
| GA 25 || Michael sprinkler
|-
| GA 26 || Avery
|-
| GA 27 || MJ thisjones
|-
| GA 28 || Anthony lighthall
|-
| GA 29 || Nick Chiado
|-
| GA 30 || Brian Desmond
|-
| GA 31 || Bob rz
|-
| GA 32 || Miko
|-
| GA 33 || moller
|-
| GA 34 || Dave d
|-
| GA 35 || Gerald Corrigan
|-
| GA 36 || Steve zakharov
|-
| GA 37 || Sara Kaiser
|-
| GA 38 || Ben kangus
|-
| GA 39 || Leo Fulwider
|-
| GA 40 ||
|-
| GA 41 ||
|-
| GA 42 ||
|-
| GA 43 || Mathew Jacob
|-
| GA 44 || Matt miedlar
|-
| GA 45 || Lilly Frazer
|-
| GA 46 || Thomas coor bonbon
|-
| GA 47 || Sidney miller
|-
| GA 48 || Rohan Gupta
|-
| GA 49 ||
|-
| GA 50 ||
|-
| GA 51 ||
|-
| GA 52 ||
|-
| GA 53 ||
|-
| GA 54 ||
|-
| GA 55 ||
|-
| GA 56 ||
|-
| GA 57 ||
|-
| GA 58 || Stephanie Thomas
|-
| GA 59 ||
|-
| GA 60 ||
|-
|}

{| class="wikitable"
| CM 01 || Does Not Exist
|-
| CM 02 || Does Not Exist
|-
| CM 03 || Ben meisberger
|-
| CM 04 ||
|-
| CM 05 || Does Not Exist
|-
| CM 06 || Does Not Exist
|-
| CM 07 || genops vacuum
|-
| CM 08 || abe stroka
|-
| CM 09 ||
|-
| CM 10 ||
|-
| CM 11 || Does Not Exist
|-
| CM 12 || Does Not Exist
|-
| CM 13 || Shauen
|-
| CM 14 || becc
|-
| CM 15 || Does Not Exist
|-
| CM 16 || Does Not Exist
|-
| CM 17 || Yukon
|-
| CM 18 || Burton Kent
|-
| CM 19 || Emmett
|-
| CM 20 ||
|-
| CM 21 || Does Not Exist
|-
| CM 22 || Does Not Exist
|-
| CM 23 || Saad Khan
|-
| CM 24 || Ayla Hayes
|-
| CM 25 || Does Not Exist
|-
| CM 26 || Does Not Exist
|-
| CM 27 || bram Abraham
|-
| CM 28 || George Hoffman
|-
| CM 29 ||
|-
| CM 30 ||
|-
| CM 31 ||
|-
| CM 32 ||
|-
| CM 33 ||
|-
| CM 34 ||
|-
| CM 35 ||
|-
| CM 36 ||
|-
| CM 37 ||
|-
| CM 38 ||
|-
| CM 39 ||
|-
| CM 40 ||
|-
| CM 41 ||
|-
| CM 42 ||
|-
| CM 43 ||
|-
| CM 44 ||
|-
| CM 45 ||
|-
| CM 46 ||
|-
| CM 47 ||
|-
| CM 48 ||
|-
| CM 49 ||
|-
| CM 50 ||
|-
| CM 51 ||
|-
| CM 52 ||
|-
| CM 53 ||
|-
| CM 54 ||
|-
| CM 55 ||
|-
| CM 56 ||
|-
| CM 57 ||
|-
| CM 58 ||
|-
| CM 59 ||
|-
| CM 60 ||
|-
|}

[[Category:Registry]]

Sources

2026-01-12T03:22:16Z

Tmnyhbs: Removed the Rebuilding Exchange due to closure last year.

Resources
re-sources [ree-sawrsez]
–noun
1. a source of supply, support, or aid, esp. one that can be readily drawn upon when needed.
2. an indexed organized list of people and places that you can utilize for your project. Kinda like the list found below.

== Electrical ==

=== Reference ===

* [http://www.faqs.org/docs/electric/Ref/REF_9.html Circuit Schematic Symbols List] Circuit Schematic Symbols: Lessons In Electric Circuits -- Volume V Chapter 9
* [http://web.archive.org/web/20120222161220/http://www.educypedia.be:80/electronics/javamotor.htm Electric Motor Animations] very cool electric motor animations but be sure to check all the other stuff out too!
* [http://www.plcs.net/contents.shtml Intro To PLC's] Plain English PLC information.
* [http://www.faqs.org/docs/electric/Digital/DIGI_6.html Ladder Diagram Basics] Ladder Diagrams: Lessons In Electric Circuits -- Volume IV Chapter 6 Ladder diagram basics. Also check out chapters 4 and 5.
* [http://www.plctutor.com/ PLC Tutor] PLC Info
* [http://www.faqs.org/docs/electric/AC/AC_9.html Transformer basics] Transformers: Lessons In Electric Circuits -- Volume II Chapter 9
* [http://electronics.wisc-online.com/ Electromechanical Reference Page] A wide ranging site dealing with quite a few subjects.
* [http://electronics.stackexchange.com/questions/5144/how-to-clean-my-soldering-iron-tip-or-how-to-determine-that-its-beyond-repair How to Clean my Soldering Iron Tip] Tips on maintaining the tip on your soldering iron from Stackexchange
* [http://www.hakkousa.com/kb/attachments/How%20to%20maximize%20soldering%20iron%20tip%20life-GUIDe088627954984a4986039711460ec36a.pdf How to maximize soldering iron tip life] (PDF from Hakko)
* [http://www.newark.com/pdfs/techarticles/plato/SolderingIronTipsCare.pdf Soldering Iron Tips Care] (PDF from Newark)

=== Suppliers ===

* [http://www.electricscooterparts.com Electric Scooter Parts] A one-stop source for homebrew electric vehicle drive systems. Be sure to check out the [http://www.electricscooterparts.com/madewithourparts.html customer project pages] to see what was built using their drive equipment. Location: boulder Creek, CA
* [http://www.eescodist.com/ EESCO] Formerly known as Englewood Electric Supply Company. General supplier of electrical parts and supplies. Location: See website for your nearest local retail store
* [http://www.gemelectricsupply.com/ GEM Electric Supply] General supplier of electrical parts and supplies. Location: See website for your nearest local retail store

== Electronics ==

=== Reference ===

* [http://www.ladyada.net/library/procure/index.html Procuring Electronic Components] A guide on another site to getting electronic parts cheaply.
* [http://www.cherrywoodsystems.com/cshop1.htm Circuit Shop Electronic Circuit CAD] Circuit Shop allows you to design, simulate and learn about digital and analog electronic circuits. Circuit Shop is an easy to use graphical CAD tool to allow electronic circuits to be constructed and simulated.
* [http://www.research-systems.com/easysim/easysim.htm Digital Logic Simulator] EasySim is an easy to use, yet sophisticated, software tool that integrates the process of designing and simulating the operation of digital electronic circuitry within the context of a Microsoft Windows environment.
* [http://octopart.com Octopart] Electronic parts search engine
* [http://www.discovercircuits.com/ Discover Circuits] DiscoverCircuits.com has 28,000+ electronic circuits, cross-referenced into 500+ categories.
* [http://www.freebyte.com/electronics/ Freebyte's Guide to Electronics Online] Internet electronics pages catalog.
* [http://www.hobby-electronics.info/ Hobby Electronics] Internet electronics pages catalog.
* [http://led.linear1.org/led.wiz LED Series/Parallel Array Wizard] The LED series/parallel array wizard is a calculator that will help you design large arrays of LEDs.
* [http://home.cogeco.ca/~rpaisley4/LM555.html LM555 And LM556 Timer Circuits] This page presents general information and some tips when using the LM555 timer.
* [http://www.ealnet.com/m-eal/resistor/resistor.htm Resistor Color Code Converter] A neat site that figures out the color codes of resistors.

=== Suppliers ===

==== General Electronics Suppliers ====

* [http://www.alliedelec.com/ Allied Electronics] General electronics supplier. Location: Ft. Worth, TX
* [http://digikey.com DigiKey] General electronics supplier. Location: Thief River Falls, MN
* [http://mouser.com Mouser] General electronics supplier. Location: Mansfield, TX
* [http://www.makershed.com/ MakerShed] MAKE Magazines own store. Kits, parts, books and supplies.
* [http://www.adafruit.com/ Adafruit Industries] Wide range of Micro controllers, parts and tools. A very nice Arduino experimentation kit is offered. Location: New York, NY
* [http://newark.com Newark] General electronics supplier. Location: Palatine, IL
* [http://sparkfun.com Sparkfun] Maker geared kits, parts and supplies. Location: Boulder, CO
* [http://www.mpja.com/ MPJA] Surplus electronics and related tools. Location: Lake Park, FL
* [https://www.tselectronic.com Tri-State Electronics] General electronics supplier. Location: Mt. Prospect, IL
* [http://www.westfloridacomponents.com/ West Florida Components] General electronics supplier. Location: Tarpon Springs, FL
* [http://www.jameco.com Jameco Electronics] General electronics supplier. Location: Belmont, CA
* [http://brilldea.com/ Brilldea]: Electronics, software and tools targeted towards prototype development. Provides Discount - Contact direct and mention PS:One Location: Hong Kong, China
* [http://chicagodist.com Chicago Electronic Distributors]: Local member owned business specializing in Raspberry Pi, Arduino & BeagleBone. Distributor for Adafruit. Contact via website for discount and logistics.

==== Specialty Electronics Suppliers ====

* [http://www.happcontrols.com/ Happ] Game Controls Location: Elk Grove, IL
* [http://www.hebeiltd.com/ Hebei LTD] LEDs Location: Shanghai, China
* [http://www.schmartboard.com/ SchmartBoard] Easy prototyping of PC Boards, accounts for ICs of various types.
* [http://www.allelectronics.com All Electronics] Motors/batteries and misc equpment
* [http://www.monoprice.com Monoprice] Ridiculously cheap cables, mostly A/V, and a few other things.

==== Robotics ====

* [http://robotcityworkshop.com/ Robot City Workshop] Chicago’s robot store.
* [http://www.trossenrobotics.com/ Trossen Robotics] Robotics kits, parts and supplies. Also check out their line of unique [http://www.trossenrobotics.com/c/robot-force-sensor-fsr.aspx/ force and touch sensors]. Location: Downers Grove, IL
* [http://www.imagesco.com Images Scientific Instruments] Robotics and electronics. Check out the [http://www.imagesco.com/sensors/sensor-index.html various specialized sensors] they sell. Very speedy shipping. Location: Staten Island NY

==== Custom PC Boards ====

* http://pcbshopper.com/ compare quotes from 23 PCB manufacturers

== Metal Working ==
=== TIG Supplies ===
* [https://store.cyberweld.com/weaktigtoack2.html The Weldcraft AK4C torch kit] is the "base" kit for the Miller Dynasty 280DX.
* [https://store.cyberweld.com/products/weldcraft-ak2c-tig-torch-accessory-kit?variant=43707923235043 The Weldcraft AK2C torch kit] is the reference kit for the Miller MultiMatic 220.
=== Powder Coating ===
==== Food Safe ====
* [https://www.powderbuythepound.com/fda-approved-clear.html FDA-approved clear]
==== NON Food Safe ====
* [https://www.eastwood.com/hotcoat-powder-coating/powders.html Eastwood] has a large selection of colors, and a store located on the South Side and are open seven days a week
* [https://powdercoatings.ppg.com PPG] offers reflective powders in clear and black, cool for bicycles or anything that could benefit from high visibility.

== Free Stuff ==

* [http://thefreestorechicago.org/ Chicago Freestore] Periodic reoccurring free exchange store. Check website for current address and hours. Location: Chicago, IL
* [https://groups.freecycle.org/group/chicagofreecycle/posts/all Freecycle] chicago’s free stuff website. Mailing list membership required. Local chapters across the country.
* [http://chicago.craigslist.org/ Craigslist] Has a “Free” section oddly located in the “For Sale” section.

== Genetic Sciences ==

* [http://www.plos.org Public Library of Science] Biological and medical journals. All articles free.
* [http://www.ncbi.nlm.nih.gov/pubmed/ PubMed] PubMed comprises more than 19 million citations for biomedical articles from MEDLINE and life science journals. Recent articles may require payment, free .pdfs in PubMed Central.
* [http://pubget.com/search PubGet] Biology articles and journals on-line.
* [http://www.ncbi.nlm.nih.gov/sites/entrez?db=omim OMIM - Online Mendelian Inheritance In Man] OMIM is a comprehensive, authoritative, and timely compendium of human genes and genetic phenotypes.
* [http://www.ncbi.nlm.nih.gov/Structure/CN3D/cn3d.shtml Cn3D] Cn3D is a helper application for your web browser that allows you to view 3-dimensional structures from NCBI's Entrez retrieval service. Cn3D runs on Windows, Macintosh, and Unix. Cn3D simultaneously displays structure, sequence, and alignment, and now has powerful annotation and alignment editing features.
* [http://www.ncbi.nlm.nih.gov/sites/gquery Entrez] Life sciences search engine.
* [http://www.ncbi.nlm.nih.gov/cdd CDD - Conserved Domain Database] Conserved domains are functional units within a protein that have been used as building blocks in molecular evolution and recombined in various arrangements to make proteins with different functions.
* [http://www.ncbi.nlm.nih.gov/biosystems Biosystems Molecular Interactions Database] A biosystem, or biological system, is a group of molecules that interact in a biological system. One type of biosystem is a biological pathway, which can consist of interacting genes, proteins, and small molecules. Another type of biosystem is a disease, which can involve components such as genes, biomarkers, and drugs
* [http://www.ncbi.nlm.nih.gov/probe Probe] Sequence-specific reagents database.

== Industrial Suppliers and Vendors ==

=== Broad Range ===

* [http://www.grainger.com/ Grainger] Longstanding industrial supplier. Note: Sales restricted to commercial accounts only however “employee sales” can cheerfully be made through personal contacts whose companies have accounts. Locations: See website for your nearest local branch
* [http://www.mcmaster.com/ McMaster-Carr] THE source for EVERYTHING industrial! Raw materials to finished items, copy paper to robot brains to left hand threaded screws, no minimums. And they’ll sell to anyone! One of the best sales websites on the internet that you can use for idea generation and physical specifications. Lots of cross ref charts. The coin cell battery reference is outstanding! Some listings have multiple format 2 and 3D drawings available.
* [http://www.mscdirect.com MSC Industrial Supply] A wide range if industrial supplies with a focus towards the metalworking industry.
* [https://www.motionindustries.com/ Motion Industries] Wide range of industrial supplies with a focus on power transmission equipment and parts. Locations: See website for your nearest local retail store
* [http://www.bearingheadquarters.com/ Bearing Headquarters] Suppliers of power transmission supplies, electric motors and shafting. Locations: See website for your nearest local retail store
* [http://jordanindustrial.com/ Jordan Industrial] Supplier of industrial supplies and raw materials. Location: Wheeling, IL

=== Capitol Equipment ===

* [http://www.harborfreight.com/ Harbor Freight] Cheap Chinese tools and machinery…cheap. Locations: See website for your nearest local retail store
* [http://grizzly.com/ Grizzly Tools] Chinese and Taiwanese sourced tools focusing on wood and metalworking equipment. Location: Muncy, PA
* [http://www.use-enco.com Enco] Long established importer of metalworking equipment, consumables and supplies. Location: Fernley, NV
* [http://www.littlemachineshop.com Little Machine Shop] A source for tabletop mill and lathe parts and supplies. Location: Pasadena, CA

== Mechanical ==

=== Reference ===
* [http://www.cosi.org/downloads/activities/simplemachines/sm1.html Simple machines (flash warning)] Flash animations of simple machines.
* [http://edheads.org/activities/simple-machines/index.shtml Edhead's Simple Machine Tutorial] Learn about simple and compound machines while you explore the house and tool shed! Silly fun stuff!
* [http://www.enchantedlearning.com/physics/machines/Levers.shtml Levers: Simple Machines] Flash animations of various classes of levers. Levers, fulcrums and loads described and illustrated.
* [http://web.archive.org/web/20120326060509/http://synthetica.eng.uci.edu/~mccarthy/Linkages.html Linkage Animations (archive.org retrieval)] Flash animations of complex linkages.
* [http://www.technologystudent.com/cams/link1.htm Linkage Mechanisms] Common linkage examples.
* [http://www.flying-pig.com/mechanisms/index.html Mechanisms and Movement] Flash animations of simple machines, mechanisms and movements.
* [http://file.lasersaur.com/docs-thirdparty/The_World_of_Timing_Belts.pdf The World Of Timing Belts] A complete primer on all things timing belt and timing belt related.
* [http://www.engineershandbook.com/ Mechanical Engineering Design Guide] The Engineer's Handbook: Tables, charts and formulas.
* [http://educypedia.karadimov.info/library/springs.pdf How To Make Springs] A complete spring making tutorial.
* [http://www.instructables.com/id/Make-your-own-springs-in-seconds/ Make your own springs]

=== Suppliers ===

* [http://www.dpxsystems.com/ DPX Systems] Turn your DeWalt drill into a power drive to power other stuff like scooters, wheel chairs, hoists, toolboxes, etc. Location: Las Vegas, NV
* [http://jordanindustrial.com/ Jordan Industrial Supply] Heavy-duty hardware distributor. Location: Wheeling, IL
* [http://www.habasitusa.com/ Habasit Belting] Sells through distributors such as Motion Industries. If you are making a large tracked robot and need tracks they are your supplier.
* [http://www.vxb.com/ VXB Bearings] A source for inexpensive bearings used in homebrew machines and gizmos. Also hybrid ceramic bearings. Location: Anaheim CA
* [http://leepspring.com/ Lee Spring] For when you can't find a particular spring ready-made on McMaster. They've got all shapes & sizes. Must register before viewing catalog.

== Miscellany ==

* [http://chicago.craigslist.org/ Craigslist Chicago] Stuff, jobs and hookers.
* [http://www.buyemp.com/ Emergency Medical Products] Because, sooner or later, you’ll mess up and start bleeding. Very fast shipping. Location: Waukesha, WI
* [http://www.boingboing.net BoingBoing] Very cool tech and tech lifestyle blog.

=== Recycling ===

* [http://www.yelp.com/biz/household-chemicals-and-computer-recycling-facility-chicago?osq=recycling Goose Island Recycling Center] Hours: Tuesday: 7AM-Noon; Thursday: 2-7PM; and the first Saturday of the month: 8AM-3PM

== Raw Materials ==

=== Chemicals ===

* [http://www.unitednuclear.com United Nuclear] Small amounts of chemicals and lab apparatus. They even sell uranium and elemental sodium. Location: Laingsburg, MI
* [http://www.firefox-fx.com/ Fire Fox FX] Pyro chemicals. Note the stringent registration policy. Location: Pocatello, ID

=== Fabrics ===
==== Local ====
* [http://www.joann.com Joann Fabrics And Crafts] Large source of fabrics, sewing supplies and craft materials. Locations: See website for your nearest local retail store. (Closest to PS:One is just south in the mall at Elston & Logan, near Microcenter.)
* [http://www.voguefabricsstore.com Vogue Fabrics] One of the best fabric stores in the area, arguably one of the best in the Midwest. Wide selection of fabric for clothing and home decor. Also have corset-making supplies and a wide range of patterns from independent pattern companies. The store in Evanston on Main Street (near the Main St. CTA station) is better than the one on Roosevelt Road.
* [http://www.fishmansfabrics.com Fishman's Fabrics] High end fabric for clothing and home decor. These days the retail store is more of a showroom for their wholesale business so in many cases you are shopping from swatches, but still a good store. Just off Roosevelt Road east of the highway, near the Roosevelt Road Vogue Fabrics and Binny's South Loop.
* [http://www.paragear.com/ ParaGear] Parachute fabrics and cords. Basically anything used on a parachute. Location: Skokie, IL
* [http://theleonardadlerco.com The Leonard Adler Company] "Sewn product construction necessities." Wondering where the local tailoring/alterations shop goes to get things like rolls of elastic, bolts of interfacing, and boxes of buttons? They almost certainly get it all from this warehouse at 3018 W. Montrose Ave. (just a few blocks east of Montrose & Kedzie). The company has been selling tailoring, dressmaking, and furrier supplies in Chicago since 1903. In many cases, what he has is much better and less expensive than the chain fabric stores. And he's local, so you don't even have to pay shipping.
* [http://misterzipper.com Jay Arbetman, Arbetman and Assoc.] also known as Chicago Wholesale Fabrics. 2256 West Grand, in Chicago. He represents a huge number of fabric manufacturers. Relatively low minimum order, less than ten yards in many cases. Also lots of sewing findings in addition to what Leonard Adler carries. Obviously a far better selection than the fabric chain stores, and he is often less expensive as well. But you will have to plan ahead, as most of it must be ordered. Also has PFD (prepared for dyeing) fabrics. If you are gearing up to start an Etsy shop and need fabric, this is the place to go.

==== Online ====
* [http://www.beaconfabric.com Becon Fabrics And Notions] An amazing assortment of drapery supplies, webbing, flagcloth and other outdoor fabrics. Great website for idea generation. Location: Lakeland, FL
* [http://www.lessemf.com/fabric.html Less EMF] Conductive fabric and thread. Enough said.
* [https://fabrics-store.com Frabrics-Store.com] Linen and Cotton-Linen blends, the Doggie Bag section has bolt ends at reduced price.

=== Junk & Salvage ===

* [http://www.yelp.com/biz/coopers-junk-yard-chicago Coopers Junk Yard] '''Closed [http://www.flickr.com/photos/25165196@N08/7196516638/in/photostream and demolished]!'''

=== Masonry ===

* [http://www.crawfordmaterial.com/ Crawford Materials] Stone and brick building materials. Location: Chicago, IL

=== Metal ===
* [https://osoriometals.com/ Osorio Metals] - Can be very cheap.
* [https://www.tsdistributors.com TS Distributors] - Can be cheaper than other places
* [http://www.metalsupermarkets.com Metal Supermarkets] — A source for metals, all kinds and shapes, no minimums. Location: [https://maps.google.com/maps?q=metalsupermarkets.com+loc:chicago Five locations in Chicagoland.]
* [[D. Wexler & Sons (metal supplier)|D. Wexler & Sons]] — A36 steel. A small supply shop, very friendly, will answer your questions. Location: 47th St, Chicago
* [http://www.otisoakley.com/ Otis-Oakley] — Sells scrap steel, as well as some new steel. Location: California Ave and Fulton St, Chicago
* [https://www.metalsdepot.com/index.phtml MetalsDepot] — A source for metals, all kinds and shapes, no minimums. Location: Winchester, KY
* [https://www.midweststeelsupply.com/store/index.php Midwest Steel] - A source for metals, all shapes and larger sizes available than most, no minimums. Location: Rodgers, MN.
* [https://www.speedymetals.com/ Speedy Metals] - A source for metals all shapes and sizes, Plate/sheet are a standard size, no minimums, and has discounted items. Location: Rockford, IL

=== Paper ===

* [http://xpedxstores.com/ Xpedx Retail Stores] Retail small printer supply house. Papers, boxes, inks, plate making supplies. Locations: See website for your nearest local retail store.
* [http://www.graytex.com/ Graytex Papers] Graytex Papers provides specialty papers and a greater choice of paper sizes. Location: Justin, TX

=== Wood ===

* [http://www.owlhardwood.com/ Owl Hardwood Lumber] — Rare and exotic woods, specialty woodworking supplies and kits. Location: See website for your nearest local retail store. Mention the PS1 account when you make your purchase and receive a 10% discount.
* [http://www.woodworld.com/ Wood World] — South on Elston. Expensive and unhelpful. Heavily picked over exotic and domestic hardwood. Last resort.
* [http://carstensmillworks.yolasite.com Carstens Millworks] — Sawyer in Warrenville offering kiln dried regional hardwoods.
* [http://www.allamericanreclaim.com All American Reclaim]] — Reclaimed hardwood in Crystal Lake.
* [http://www.woodfinder.com/listings/012206.php Russell Mill] — Saw mill in Zion Illinois — salvage and reclaimed lumber, hardwood sawyer.
* [http://meyerslumber.com/ Meyers Woodworking and Lumber] — West Chicago sawyer — regional hardwoods.
* [http://www.horiganufp.com/ Horrigan Urban Forest Products] — Skokie — urban felled hardwoods
* [http://ghwoodworking-com.web4.tempwebsite.net/?page_id=24 GH Woodworking] — Wauconda sawyer — reclaimed urban hardwood.

=== Plastic ===

* [http://www.inventables.com Inventables] — All sorts of maker-y hardware and materials, including laserable size acrylic. Friend of PS:One! Location: Chicago.
* [http://www.petersenplastics.com Petersen plastics] — sheet plastics and manufacturing services. Location: Chicago.
* [http://www.raycosignsupply.com Rayco Sign Supply] — roll vinyl for the use with the vinyl cutter, and other sign-making supplies. Location: Chicago
* [http://www.eagerplastics.com/cat.htm Eager Polymers] — Liquid thermosets: Silicones, epoxies, moldmaking, etc. Location: 48th St, Chicago

===Glass===

* [http://tglass.com/ Tortenson glass 3233 N. Sheffield Ave.] - tends to be expensive, compared to Chicago Tempered Glass
* [http://www.chicagotemperedglass.com/ Chicago Tempered Glass]
* The internet! For standard sizes and thicknesses, you can now get glass delivered for less than the price of local custom fabrication.

== Reference ==

=== Calculators And Conversions ===

* [http://www.onlineconversion.com/ On Line Conversion] Convert just about anything to anything else. Over 5,000 units, and 50,000 conversions.
* [http://www.wise-uranium.org/rdcri.html Radiation Dose to Risk Converter] When you really, Really, REALLY mess up.
* [http://www.calcenstein.com/ CalcEnstein] Need a specific or unusual calculator?
* [http://www.xe.com/ucc/full/ XE Currency Converter] Currency exchange rates updated daily.

=== Chemical ===

* [http://www.coleparmer.com/techinfo/chemcomp.asp Cole-Parmer Chemical Compatibility Charts] Which materals are compatable with what chemicals.

=== Creativity, Brainstorming, Learning And Teaching ===

* [http://www.mindtools.com/pages/main/newMN_CT.htm Creativity Tools] A source for creativity tools and ideas.
* [http://www.mindtools.com/pages/article/newTMC_5W.htm Five Why's] A simple useful problem-solving tool.
* [http://www.nwlink.com/~donclark/hrd/sat.html#intro Instructional System Design] How to design training programs.
* [http://www.mindtools.com/pages/main/newMN_TMC.htm Problem Solving Techniques] Problem solving tool and ideas.
* [http://www.nwlink.com/~donclark/hrd.html Training & Learning Site] Creative training and instruction.
* [http://ocw.mit.edu/OcwWeb/web/courses/courses/index.htm#top Free MIT Web Classes] MIT is putting their entire curriculum on line and for free!

=== Food ===

* [http://www.culinarysoftware.com/sugar.htm Cooked Sugar Tests and Temperatures] Sugar and what you can expect it to do at various temperatures.
* [http://www.foodtimeline.org/ Food Timeline] Just a damn cool site that has NOTHING to do with the rest of this stuff.

=== Engineering ===

* [http://www.efunda.com/home.cfm eFunda: The Ultimate Engineering Fundamentals Site] eFunda stands for engineering Fundamentals. Its mission is to create an online destination for the engineering community, where working professionals can quickly find concise and reliable information to meet the majority of their daily reference needs.
* [http://www.sdp-si.com/web/html/reference_library.htm Small Drive Parts Reference ] From Stock Drive Products.
* [http://www.technologystudent.com/index.htm Technologystudent.com] The information sheets cover a wide range and include, the design process, gear systems, electronics, cams, printed circuit boards, PIC microcontrollers/computer control, key words/phrases, structures, vocational work, technology and cultures, basic CNC work. They are intended to provide a valuable resource for teachers and pupils AND they are free.

=== General ===

* [http://www.youtube.com/watch?v=Bh_qn62zny0 DB Fletcher Capstan Ilona Expanding Table] File under things that make you go "Huh! Neat!"
* [http://hackerspaces.org/wiki/Hackerspaces Hackerspaces] All about hackerspaces, where they are and ideas behind them.
* [http://www.innocentive.com/ InnoCentive] Here is where big business offers you big money to solve their big problems.
* [http://www.brainyquote.com/quotes/type/type_inventor.html Invention Quotes] Because we all need motivation and inspiration from time to time.
* [http://www.usa.gov/Agencies/Federal/All_Agencies/index.shtml List Of All U.S. Govt Agencies] Because sometimes you just have to work WITH them.
* [http://makezine.com/ MAKE Magazine] The MAKE'ers magazine.
* [http://www.instructables.com Instructables] A great site for diy projects with step-by-step instructions.
* [http://patft1.uspto.gov/netahtml/PTO/search-bool.html U. S. Patent Office Quick Search] Search the database for all things patent related.
* [http://www.gizmology.net/index.htm Unique Projects] This guy made a toy Sherman tank his kid could ride in! How cool is that!
* [http://www.uiausa.org/ United Inventor’s Association] United Inventors Association is the national membership organization dedicated to inventor education and support.
* [http://www.refdesk.com/ Refdesk.com] A depository of reference sites whose information has been confirmed as valid.

=== Workshop ===

* [http://www.aardvark.co.nz/pjet/makevalves1.pdf Electro-Chemical Etching] A treatise on cutting thin metal using acid to cut complex shapes.
* [http://www.littlemachineshop.com/Reference/reference.php Little Machine Shop Reference Page] Reference page for tooling, parts, and accessories for bench top machinists.
* [http://www.metalworking.com/ Metalworking.com] A resource for the "Rec.Crafts.Metalworking" community of hobbyists and small businesses.
* [http://www.cooperhandtools.com/brands/nicholson_files/Nicholson%20Guide%20To%20Filing%202006.pdf Nicholson File Information] Nicholson file guide to files and filing.
* [http://www.cooperhandtools.com/brands/nicholson_files/file_terminology.pdf Nicholson File Terminology] Nicholson File Terminology Guide
* [https://www.sherline.com/related-links-and-resources/ Sherline's Metalworking Resources and Hotlinks List] Reference material for miniature machining.
* [http://www.shopfloortalk.com/forums/index.php Shop Floor Talk Forum] A forum for all things metal and metal working.
* [http://bbs.homeshopmachinist.net/index.php The Home Shop Machinist & Machinist's Workshop BBS] A forum for all things metal and metal working.
* [http://www.woodweb.com/cgi-bin/calculators/calc.pl?calculator=weight_bd_ft Lumber Weight Calculator] A very diverse and detailed calculator designed to determine lumber weights.
* [http://mistupid.com/homeimpr/lumber.htm Nominal Lumber Dimensions] Actual lumber dimensions chart.
* [http://www.engineeringtoolbox.com/pvc-cpvc-pipes-dimensions-d_795.html PVC Pipe Dimensions] Actual PVC pipe dimensions chart.
* [http://techtv.mit.edu/collections/ehs-videos/videos MIT’s Intro to Metal Shop Video Series] An outstanding series for the beginning machinist.

== Reading Materials ==

=== Books ===

Title (Links to Amazon.com), Author, ISBN, Description

* [http://www.lindsaybks.com/ Lindsay Technical Publications] Now out of business. An amazing catalog of how to books from the turn of the century to modern technology.
* [http://www.lindsaybks.com/link1.html Lindsay's links to similar vendors]
* [http://www.youroldtimebookstore.com/ Your Old Time Bookstore] Former employees of Lindsay, some of the same books
* [http://www.gingerybookstore.com/ Gingery Books]
* [http://www.knowledgepublications.com Knowledge Publications]. A lot of energy related books.

==== Chemistry ====

* [http://www.amazon.com/Chemical-Tradename-Dictionary-Michael-Ash/dp/1560816252/ref=sr_1_1?ie=UTF8&s=books&qid=1265122800&sr=1-1 Chemical Tradename Dictionary (Paperback)] Ash 1560816252 A dictionary that cross references tradename and scientific names of industrial chemicals.
* [http://www.amazon.com/Industrial-Chemical-Thesaurus-Michael-Ash/dp/1560816155/ref=sr_1_1?ie=UTF8&s=books&qid=1265123680&sr=1-1 Industrial Chemical Thesaurus Vol 1 & 2 (Hardcover)] Ash 1560816155 This reference work contains approximately 40,000 international tradenames by which more than 6000 generic chemicals are known and marketed worldwide.
* [http://www.amazon.com/McGraw-Hill-Dictionary-Chemistry-Sybil-Parker/dp/0070524289/ref=sr_1_1?ie=UTF8&s=books&qid=1265125958&sr=1-1 McGraw-Hill Dictionary of Chemistry (Paperback)] Parker 9780070524286 An essential reference for all professional engineers, writers, and students.

==== Computer sciences ====

==== Crafts ====

==== Electricity & Electronics ====

* [http://www.amazon.com/Electrical-Motor-Controls-Gary-Rockis/dp/0826916716/ref=sr_1_1?ie=UTF8&s=books&qid=1265123323&sr=1-1 Electrical Motor Controls (Hardcover)] Rockis 9780826916716 Considered to be the standard text for text books in the field. This textbook presents technical information on the control devices used in contemporary industrial electrical systems. A sampling of topics includes electrical safety, solenoids, reversing motor circuits, power distribution systems, solid-state relays, reduced-voltage starting, PLCs, and DC and AC circuits.
* [http://www.amazon.com/Telephone-Repair-Illustrated-Stephen-Bigelow/dp/0830640347/ref=sr_1_2?ie=UTF8&s=books&qid=1265128669&sr=1-2 Telephone Repair Illustrated (Hardcover)] Bigelow 0830640347 This guide will take you through beginning and intermediate levels of telephone repair.

==== Engineering & Design ====

* [http://www.amazon.com/507-Mechanical-Movements-Mechanisms-Devices/dp/0486443604/ref=sr_1_1?ie=UTF8&s=books&qid=1265122515&sr=1-1 507 Mechanical Movements: Mechanisms and Devices (Dover Science Books) (Paperback)] Brown 0486443604 This 1868 compendium of ingenious mechanisms employs simple drawings to explain 507 of the small components that constitute complex machinery. Left-hand pages feature illustrations, and facing pages offer brief descriptions of use and operation. Ranging from simple to complex, the mechanisms include cranks, pulleys, drills, wheels, and screws. [http://books.google.com/books?id=vOhIAAAAMAAJ&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false Read/Download free eBook]
* [http://www.amazon.com/Dictionary-Engineering-Sybil-P-Parker/dp/0070524351/ref=sr_1_1?ie=UTF8&s=books&qid=1265123019&sr=1-1 Dictionary of Engineering (Paperback)] Parker 9780070524354 An essential reference for all professional engineers, writers, and students.
* [http://www.amazon.com/Engineering-Formulas-Kurt-Gieck/dp/0071457747/ref=sr_1_1?ie=UTF8&s=books&qid=1265123412&sr=1-1 Engineering Formulas (Hardcover)] Gieck 9780071457743 A good source of math formulas for many subjects.
* [http://www.amazon.com/Ingenious-Mechanisms-Designers-Inventors-Set/dp/0831110848/ref=tmm_hrd_title_4 Ingenious Mechanisms for Designers and Inventors 4-Volume Set (Hardcover)] Jones 0831110848 Among the mechanisms described and illustrated by working diagrams are: Cam applications and special cam designs; intermittent motions from gears and cams; interlocking devices; valve diagrams; reversing mechanisms of special design; tripping or stop mechanisms; drives of crank type for reciprocating driven members; feeding mechanisms and auxiliary devices; feeding and ejecting mechanisms; and many, many more.
* [http://www.amazon.com/Machine-Design-Handbook-Ph-D-Lingaiah/dp/0070379335/ref=sr_1_1?ie=UTF8&s=books&qid=1265125252&sr=1-1 Machine Design Data Handbook (Hardcover)] Lingaiah 9780070379336 This unique handbook provides hundreds of charts on material properties as well as the necessary equations, formulas, calculations, graphs, and data required to solve the full range of machine design problems.
* [http://www.amazon.com/Basic-Fixture-Design-Paul-Campbell/dp/0831130520/ref=sr_1_1?ie=UTF8&s=books&qid=1265122606&sr=1-1 Basic Fixture Design (Hardcover)] Campbell 831130520 This illustrated introduction to fixture design takes the reader from concept to building. It details the mechanics, materials used, commercially available components, design procedures, and economics.
* [http://www.amazon.com/Fixture-Design-Manual-Erik-Henriksen/dp/0831110988/ref=sr_1_1?ie=UTF8&s=books&qid=1265125144&sr=1-1 Jig and Fixture Design Manual (Hardcover)] Henriksen 0831110988 Written for the experienced engineer as well as the student, this comprehensive reference presents the fundamental aspects of jig and fixture design.
* [http://www.amazon.com/Mechanisms-Mechanical-Sourcebook-Nicholas-Chironis/dp/0070109184/ref=sr_1_1?ie=UTF8&s=books&qid=1265126042&sr=1-1 Mechanisms and Mechanical Devices Sourcebook (Hardcover)] Chironis 0070109184 A one-of-a-kind pictorial directory gives you drawings and descriptions of time-tested components, mechanisms, and devices.
* [http://www.amazon.com/Rolling-Bearings-Contribution-Progress-Technology/dp/0712415009/ref=sr_1_1?ie=UTF8&qid=1265133507&sr=8-1 Rolling Bearings and Their Contribution to the Progress of Technology (Hardcover)] FAG Bearings 712415009 A text unique in the fact that it was written and published by a manufacturing company
* [http://www.amazon.com/Unwritten-Laws-Engineering-W-King/dp/0791806413/ref=sr_1_1?ie=UTF8&s=books&qid=1265129197&sr=1-1 Unwritten Laws of Engineering (Paperback)] King 0791806413 This fully revised and updated edition of the 1944 classic serves as a crucial compilation of 'house rules' or a professional code.

==== Food ====

* [http://www.amazon.com/gp/product/0596805888?ie=UTF8/amazontag=cookingforgee-20/amazonlinkCode=as2/amazoncamp=1789/amazoncreative=9325/amazoncreativeASIN=0596805888 Cooking for Geeks: Real Science, Great Hacks, and Good Food (O'Reilly Media; 1 edition (August 9, 2010)) (Paperback)] Potter 0596805888 Initialize your kitchen and calibrate your tools. Learn about the important reactions in cooking, such as protein denaturation, Maillard reactions, and caramelization, and how they impact the foods we cook. Play with your food using hydrocolloids and sous vide cooking. Gain firsthand insights from interviews with researchers, food scientists, knife experts, chefs, writers, and more, including author Harold McGee, TV personality Adam Savage, chemist Hervé This, and xkcd.

==== General Reference ====

* [http://www.amazon.com/Dr-Deming-American-Japanese-Quality/dp/0671746219/ref=sr_1_1?ie=UTF8&s=books&qid=1265123135&sr=1-1 Dr. Deming: The American Who Taught the Japanese About Quality (Paperback)] Aguayo 9780671746216 This is a classic book that is very useful for those who need a gentle introduction to Total Quality Management. Although 15 years old with some rather dated examples, the message it gives is still relevant and important.
* [http://www.amazon.com/Pocket-Ref-Thomas-J-Glover/dp/1885071337/ref=sr_1_1?ie=UTF8&s=books&qid=1265126311&sr=1-1 Pocket Ref (Paperback)] Glover 1885071337 Pocket Ref is a unique book. It is part encyclopedia, part trivia tome, part entertainment and part dispute-solver. Buried in the various tables and charts are tons of data and facts to aid the reader, roadside mechanic or budding MacGyver. There is also a [http://www.amazon.com/Deskref-Thomas-JGlover/dp/1885071442/ref=ntt_at_ep_dpi_3 full size version] that does not require a microscope to read.

==== Human Factors ====

* [http://www.amazon.com/Control-Systems-Innovations-Advanced-Companie/dp/1563271435/ref=sr_1_1?ie=UTF8&s=books&qid=1265129436&sr=1-1 Visual Control Systems (Visual Control Innovations in Japan's Most Advanced Companies) (Paperback)] Shimbun 9781563271434 How to keep factory workers from messing up by using signs, lights, charts and pictures.
* [http://www.amazon.com/Factors-Design-Handbook-Wesley-Woodson/dp/0070717680/ref=sr_1_1?ie=UTF8&s=books&qid=1265123598&sr=1-1 Human Factors Design Handbook (Hardcover)] Multiple 9780070717688 Covers the art and science of designing machines for human use.

==== Hydraulics ====

* [http://www.amazon.com/Vickers-Industrial-Hydraulics-Manual-Training/dp/0963416200/ref=sr_1_1?ie=UTF8&s=books&qid=1265129312&sr=1-1 Vickers Industrial Hydraulics Manual (Hardcover)] Vickers 9780963416209 Eaton Fluid Power Training's Industrial Hydraulics Manual have set the standard for the industry for many years. Clear, plainly written text and high-quality illustrations make the Vickers Industrial Hydraulics Manual the most popular hydraulics text both in plants and at local college bookstores.

==== Inventions & Inventing ====

* [http://www.amazon.com/Creativity-Flow-Psychology-Discovery-Invention/dp/0060928204/ref=sr_1_1?ie=UTF8&s=books&qid=1265122937&sr=1-1 Creativity: Flow and the Psychology of Discovery and Invention (Paperback)] Csikszentmihalyi 9780060928209 What makes us invent things?
* [http://www.amazon.com/Inventing-Modern-America-Microwave-Mouse/dp/0262523493/ref=sr_1_1?ie=UTF8&s=books&qid=1265124066&sr=1-1 Inventing Modern America: From the Microwave to the Mouse (Paperback)] Brown 9780262523493 Introduces 35 practitioners of American ingenuity in this survey, profiling inventors in many fields.
* [http://www.amazon.com/Invention-Design-Engineers-Thought-Thing/dp/0674463684/ref=sr_1_1?ie=UTF8&s=books&qid=1265124550&sr=1-1 Invention by Design; How Engineers Get from Thought to Thing (Paperback)] Petroski 9780674463684 Invention by design is a complex book written about simple everyday things we use. Things like paper clips, aluminum cans, mechanical pencils, zippers, airplanes, bridges, and more.
* [http://www.amazon.com/Inventors-Discoverers-Changing-Our-World/dp/0870447513/ref=sr_1_1?ie=UTF8&s=books&qid=1265124646&sr=1-1 Inventors and Discoverers: Changing Our World (Hardcover)] Newhouse 0870447513 From steam to aeronautics, from photography to tomorrow's technology, this intriguing chronicle of invention and discovery relives 200 years of technological breakthroughs that have changed our world.
* [http://www.amazon.com/Engines-Our-Ingenuity-Engineer-Technology/dp/0195167317/ref=sr_1_1?ie=UTF8&s=books&qid=1265129021&sr=1-1 The Engines of Our Ingenuity: An Engineer Looks at Technology and Culture (Paperback)] Lienhard 9780195167313 What makes us engineer things?

==== Learning & Problem Solving ====

* [http://www.amazon.com/Thinkers-Toolkit-Powerful-Techniques-Problem/dp/0812928083/ref=sr_1_1?ie=UTF8&s=books&qid=1265129116&sr=1-1 The Thinker's Toolkit: 14 Powerful Techniques for Problem Solving (Paperback)] Jones 9780812928082 A book for problem solving and decision-making.

==== Material Sciences ====

* [http://www.amazon.com/Introduction-Materials-Processes-Iu-Mechanical-Technology/dp/0827350201/ref=sr_1_1?ie=UTF8&s=books&qid=1265123914&sr=1-1 Introduction to Materials and Processes (Hardcover)] Wright 9780827350205 A comprehensive approach designed to introduce the beginning student of engineering to the basic concepts of the industrial materials and
manufacturing processes.
* [http://www.amazon.com/Materials-Handbook-Encyclopedia-Professionals-Technicians/dp/0070070741/ref=sr_1_1?ie=UTF8&s=books&qid=1265125796&sr=1-1 Materials Handbook: An Encyclopedia (Hardcover)] Brady 9780070070745 Covers both classic and cutting edge material, applications and limitations.

==== Metalworking & Machining ====

* [http://www.amazon.com/How-run-lathe-operation-cutting/dp/155918115X/ref=sr_1_1?ie=UTF8&s=books&qid=1265123472&sr=1-1 How To Run A Lathe (Paperback)] O'Brian 155918115X The care and operation of a screw cutting lathe.
* [http://www.amazon.com/Machine-shop-Practice-Vol-1/dp/0831111267/ref=sr_1_1?ie=UTF8&s=books&qid=1265125319&sr=1-1 Machine Shop Practice Vol. 1 (Hardcover)] Moltrecht 0831111267 An essential reference for all machinists, professional engineers, writers, and students.
* [http://www.amazon.com/Machine-Shop-Practice-Vol-2/dp/0831111321/ref=sr_1_1?ie=UTF8&s=books&qid=1265125480&sr=1-1 Machine Shop Practice Vol. 2 (Hardcover)] Moltrecht 0831111321 An essential reference for all machinists, professional engineers, writers, and students.
* [http://www.amazon.com/Machinerys-Handbook-Tool-Box-Franklin-Jones/dp/0831126256/ref=sr_1_1?ie=UTF8&s=books&qid=1265125555&sr=1-1 Machinery's Handbook Tool-Box Edition (Hardcover)] Multiple 9780831126254 Considered to be the standard metalworking shop reference. Updated versions regularly published.
* [http://www.amazon.com/Machining-Fundamentals-John-R-Walker/dp/0870067109/ref=sr_1_1?ie=UTF8&s=books&qid=1265125720&sr=1-1 Machining Fundamentals (Hardcover)] Walker 870067109 A comprehensive text that provides an introduction to the various machining operations, setups, and procedures. The colorful and detailed text covers all traditional machining methods, as well as newer and nontraditional methods. Extensive coverage of CNC and automated manufacturing processes is included.
* [http://www.amazon.com/Modern-Metalworking-John-R-Walker/dp/0870061666/ref=sr_1_1?ie=UTF8&s=books&qid=1265126117&sr=1-1 Modern Metalworking (Hardcover)] Walker 870061666 A good basic high school/jr. college shop course text book on the subject. Long out of print but can often be had for less than $2 used.

==== Old Things New ====

* [http://www.amazon.com/Sears-Roebuck-Catalogue-Consumers-Guide/dp/0791019454/ref=sr_1_1?ie=UTF8&qid=1265122315&sr=8-1 1897 Sears, Roebuck & Co. Catalog (Paperback)] Israel 9780791019450 A great source of nostalgia, lost ideas and technologies.
* [http://www.amazon.com/1902-Sears-Roebuck-Co-Catalog/dp/0517009226/ref=sr_1_1?ie=UTF8&s=books&qid=1265122415&sr=1-1 1902 Sears, Roebuck & Co. Catalog (Paperback)] Amory 9780517009222 A great source of nostalgia, lost ideas and technologies.
* [http://www.amazon.com/Boy-Mechanic-Things-Boys-Book/dp/0917914880/ref=sr_1_1?ie=UTF8&s=books&qid=1265122711&sr=1-1 Boy Mechanic: 700 Things for Boys to Do/ Book 1-3 (Paperback)] Pop Mechanics 917914880 A compendium reprint of projects from Popular Mechanics circa 1913. A great source of nostalgia, lost ideas and technologies. 3+ Volumes are available.
* [http://www.amazon.com/boy-electrician-Alfred-Powell-Morgan/dp/1559181648/ref=sr_1_1?ie=UTF8&s=books&qid=1265128800&sr=1-1 The Boy Electrician (Paperback)] Morgan 1559181648 The classic how-to book, first published in 1913, is filled with dozens of electrical projects and experiments for the young and old alike.
* [http://www.amazon.com/Control-Systems-Innovations-Advanced-Companie/dp/1563271435/ref=sr_1_1?ie=UTF8&s=books&qid=1265129436&sr=1-1 War Toys for Boys Classic Plans (Pamphlet)] Hall 1559182490 A compendium reprint of projects from Popular Mechanics circa 1913. A great source of nostalgia, lost ideas and technologies.

==== Physics ====

==== Robotics ====

=== Magazines ===

Title, (Type), Description

* [http://www.designnews.com/ Design News] (Trade Journal/Free Subscription) THE design magazine. Excellent website!
* [http://www.edn.com/ Electronic Design News] (Trade Journal/Free Subscription) THE electronics design magazine
* [http://www.eedigest.com/ Electronics Digest] (E-zine) OEM Electronics
* [http://www.epemag3.com/ EPEMag] (E-zine) Web delivered hobby magazine
* [http://makezine.com/ MAKE Magazine] (Consumer/Paid Subscription) The MAKE'ers magazine
* [http://www.hplusmagazine.com/ h+] (E-zine and Consumer/Paid Subscription) h+ covers technological, scientific, and cultural trends that are changing, and will change, human beings in fundamental ways.
* http://www.ewa1.com/mghmen.html Model Engineering (UK)] (Consumer/Paid Subscription) Scale working steam engines and bench top machining
* http://www.techbriefs.com/ NASA Tech Briefs] (Trade Journal/Free Subscription) Way beyond cutting edge tech
* [http://www.nutsvolts.com/ Nuts And Volts] (Consumer/Paid Subscription) Electronics hobby magazine
* [http://www.homeshopmachinist.net/home?noredirect=true The Home Shop Machinist, Machinist's Workshop, and Digital Machinist] (Consumer/Paid Subscription) THE home machinists magazine series

== Retail Suppliers ==

* [http://www.sciplus.com/ American Science and Surplus] All around awesome store, and we get a discount! Customer Number is 12025714. Retail locations in Park Ridge, Geneva, and Milwaukee.
* [http://scientificsonline.com/ Edmund Scientific] Wide range of science related toy, games and kits. Location: Tonawanda, NY
* [http://www.bricklink.com/ Brick Link] Kind of like eBay or Amazon but for Lego bricks.

== Surplus ==

* [http://www.govliquidation.com/ Government Liquidators] Official federal government auctions site. Read the fine print before you leap.

== Coffee ==
* [https://www.kikwetu.coffee/ Kikwetu Kenya Coffee Company]
* [https://www.sweetmarias.com/ Sweet Maria's Home Coffee Roasting]

Grizzly 20" Planer

2026-01-07T14:58:09Z

Tmnyhbs: /* Reference Material */

{{Template:EquipmentPage
|owner = PS:One
|certification = yes
|hackable = no
|model = Grizzly G0454Z
|serial = 144367
|arrived = December 2025
|doesitwork = yes
|contact =
|where = Wood Shop
|value = $4000
|image = Grizzly_Planer.jpeg
|hostarea = Wood Shop
}}{{:Authorizations/Woodshop Basic}}

== Guidelines for proper use ==
# '''Always''' check your wood for nails or staples. Something as small as the staple at the end of a 1x1 can ruin the blades. If you're not sure, check the entire piece with the metal detector sitting on the table saw.
# '''Always''' measure the thickness of your work and set the initial and working blade height to remove only small amounts of material per pass. You will damage the blades if you manage to dig the machine out on your work.
# If the machine is making a strange noise when you use it, there is a problem, and you should '''ask for help.'''
# If the blades are dull or damaged, '''contact the area host immediately.'''
# If you break something, or damage the tool, '''contact the area host immediately.''' Don't let others do more damage or hurt themselves by using a broken tool.
# '''Always''' make sure that the dust collection bag isn't too full and is passing air freely.
# '''Always''' vacuum the machine, cutting area, and the table around the machine when you are done.

'''This tool requires authorization for use.'''

== Checklist ==
<nowiki>*</nowiki>NEED TO CREATE AND Add maintenance checklist document.*

Hour meter is installed.

We're going to try to follow the preventative maintenance schedule from Grizzly which is as follows.

<div class="toccolours mw-collapsible mw-collapsed">'''Grizzly Defined Maintenance
<div class="mw-collapsible-content">
'''Ongoing Cleaning and Protection:'''

* Vacuum excess wood chips and sawdust from the outside of the machine, inside the cabinet, and off the motor. Protect the unpainted cast iron surfaces on the table by wiping the table clean after every use—this ensures moisture from wood dust does not remain on bare metal surfaces.
* Keep tables rust-free with regular applications of products like G96® Gun Treatment, SLIPIT®, or Boeshield® T-9 from Grizzly.

'''Every 8 Hours of Operation:'''

* Clean the machine and protect unpainted cast iron.
* Lubricate the feed rollers bushings (Page 29).
* Tighten loose mounting bolts.
* Check/rotate/replace damaged or worn inserts (Page 34).
* Check/repair/replace worn or damaged wires.
* Resolve any other unsafe condition.

'''Every 40 Hours of Operation:'''

* Lubricate the table columns and leadscrews (Page 29).
* Clean/vacuum the dust buildup from inside the cabinet and off motor.

'''Every 160 Hours of Operation:'''

* Check/tension/replace the V-belts (Page 35).
* Lubricate the table height worm gear (Page 29).
* Lubricate the table height chain and sprockets (Page 30).
* Lubricate the drive chain and sprockets (Page 30).

'''Yearly:'''

* Change the gearbox oil (Page 30).
</div></div>

== External Links ==
*[https://www.grizzly.com/products/grizzly-20-5-hp-planer-w-spiral-cutterhead/g0454z Manufacturer Page]
*[https://cdn0.grizzly.com/manuals/g0454z_m.pdf Owner's Manual]
*Maintenance Doc

== Reference Material ==
<div class="toccolours mw-collapsible mw-collapsed">
'''Manual -- Current as of December 2025 '''
<div class="mw-collapsible-content">
[[File:G0454z_m.pdf]]</div>
</div>
<div class="toccolours mw-collapsible mw-collapsed">
'''Link to Grizzly Product Page for Additional Information '''
<div class="mw-collapsible-content">
https://www.grizzly.com/products/grizzly-20-5-hp-planer-w-spiral-cutterhead/g0454z?srsltid=AfmBOorPBVF8DfSSz27MYjT30UEeJ8nphJbaJsZ9bNdmEhAaRJTHqfha</div>
</div>

== Maintenance Logs ==
*1/31/25 - Nick, Locke, Pat
**Unloaded and setup machine
***Wings leveled, gearbox oil topped off, bed rollers checked
**Modifications made
***junction box on lower front left for ecogate current meter. switched to barrel jack for ecogate low voltage connector.
***hour meter installed on back left.
***broke off a tack welded nut on the front left corner for the adjustable foot. to be fixed later. machine is up on 4x4s for now. in service.
[[Category:Wood Shop]]
[[Category:Shop Equipment]]

Grizzly 20" Planer

2026-01-07T14:55:28Z

Tmnyhbs: /* Reference Material */

{{Template:EquipmentPage
|owner = PS:One
|certification = yes
|hackable = no
|model = Grizzly G0454Z
|serial = 144367
|arrived = December 2025
|doesitwork = yes
|contact =
|where = Wood Shop
|value = $4000
|image = Grizzly_Planer.jpeg
|hostarea = Wood Shop
}}{{:Authorizations/Woodshop Basic}}

== Guidelines for proper use ==
# '''Always''' check your wood for nails or staples. Something as small as the staple at the end of a 1x1 can ruin the blades. If you're not sure, check the entire piece with the metal detector sitting on the table saw.
# '''Always''' measure the thickness of your work and set the initial and working blade height to remove only small amounts of material per pass. You will damage the blades if you manage to dig the machine out on your work.
# If the machine is making a strange noise when you use it, there is a problem, and you should '''ask for help.'''
# If the blades are dull or damaged, '''contact the area host immediately.'''
# If you break something, or damage the tool, '''contact the area host immediately.''' Don't let others do more damage or hurt themselves by using a broken tool.
# '''Always''' make sure that the dust collection bag isn't too full and is passing air freely.
# '''Always''' vacuum the machine, cutting area, and the table around the machine when you are done.

'''This tool requires authorization for use.'''

== Checklist ==
<nowiki>*</nowiki>NEED TO CREATE AND Add maintenance checklist document.*

Hour meter is installed.

We're going to try to follow the preventative maintenance schedule from Grizzly which is as follows.

<div class="toccolours mw-collapsible mw-collapsed">'''Grizzly Defined Maintenance
<div class="mw-collapsible-content">
'''Ongoing Cleaning and Protection:'''

* Vacuum excess wood chips and sawdust from the outside of the machine, inside the cabinet, and off the motor. Protect the unpainted cast iron surfaces on the table by wiping the table clean after every use—this ensures moisture from wood dust does not remain on bare metal surfaces.
* Keep tables rust-free with regular applications of products like G96® Gun Treatment, SLIPIT®, or Boeshield® T-9 from Grizzly.

'''Every 8 Hours of Operation:'''

* Clean the machine and protect unpainted cast iron.
* Lubricate the feed rollers bushings (Page 29).
* Tighten loose mounting bolts.
* Check/rotate/replace damaged or worn inserts (Page 34).
* Check/repair/replace worn or damaged wires.
* Resolve any other unsafe condition.

'''Every 40 Hours of Operation:'''

* Lubricate the table columns and leadscrews (Page 29).
* Clean/vacuum the dust buildup from inside the cabinet and off motor.

'''Every 160 Hours of Operation:'''

* Check/tension/replace the V-belts (Page 35).
* Lubricate the table height worm gear (Page 29).
* Lubricate the table height chain and sprockets (Page 30).
* Lubricate the drive chain and sprockets (Page 30).

'''Yearly:'''

* Change the gearbox oil (Page 30).
</div></div>

== External Links ==
*[https://www.grizzly.com/products/grizzly-20-5-hp-planer-w-spiral-cutterhead/g0454z Manufacturer Page]
*[https://cdn0.grizzly.com/manuals/g0454z_m.pdf Owner's Manual]
*Maintenance Doc

== Reference Material ==
<div class="toccolours mw-collapsible mw-collapsed">
'''Manual '''
<div class="mw-collapsible-content">
[[File:G0454z_m.pdf]]</div>
</div>

== Maintenance Logs ==
*1/31/25 - Nick, Locke, Pat
**Unloaded and setup machine
***Wings leveled, gearbox oil topped off, bed rollers checked
**Modifications made
***junction box on lower front left for ecogate current meter. switched to barrel jack for ecogate low voltage connector.
***hour meter installed on back left.
***broke off a tack welded nut on the front left corner for the adjustable foot. to be fixed later. machine is up on 4x4s for now. in service.
[[Category:Wood Shop]]
[[Category:Shop Equipment]]

Grizzly 20" Planer

2026-01-07T14:53:58Z

Tmnyhbs: /* Checklist */

{{Template:EquipmentPage
|owner = PS:One
|certification = yes
|hackable = no
|model = Grizzly G0454Z
|serial = 144367
|arrived = December 2025
|doesitwork = yes
|contact =
|where = Wood Shop
|value = $4000
|image = Grizzly_Planer.jpeg
|hostarea = Wood Shop
}}{{:Authorizations/Woodshop Basic}}

== Guidelines for proper use ==
# '''Always''' check your wood for nails or staples. Something as small as the staple at the end of a 1x1 can ruin the blades. If you're not sure, check the entire piece with the metal detector sitting on the table saw.
# '''Always''' measure the thickness of your work and set the initial and working blade height to remove only small amounts of material per pass. You will damage the blades if you manage to dig the machine out on your work.
# If the machine is making a strange noise when you use it, there is a problem, and you should '''ask for help.'''
# If the blades are dull or damaged, '''contact the area host immediately.'''
# If you break something, or damage the tool, '''contact the area host immediately.''' Don't let others do more damage or hurt themselves by using a broken tool.
# '''Always''' make sure that the dust collection bag isn't too full and is passing air freely.
# '''Always''' vacuum the machine, cutting area, and the table around the machine when you are done.

'''This tool requires authorization for use.'''

== Checklist ==
<nowiki>*</nowiki>NEED TO CREATE AND Add maintenance checklist document.*

Hour meter is installed.

We're going to try to follow the preventative maintenance schedule from Grizzly which is as follows.

<div class="toccolours mw-collapsible mw-collapsed">'''Grizzly Defined Maintenance
<div class="mw-collapsible-content">
'''Ongoing Cleaning and Protection:'''

* Vacuum excess wood chips and sawdust from the outside of the machine, inside the cabinet, and off the motor. Protect the unpainted cast iron surfaces on the table by wiping the table clean after every use—this ensures moisture from wood dust does not remain on bare metal surfaces.
* Keep tables rust-free with regular applications of products like G96® Gun Treatment, SLIPIT®, or Boeshield® T-9 from Grizzly.

'''Every 8 Hours of Operation:'''

* Clean the machine and protect unpainted cast iron.
* Lubricate the feed rollers bushings (Page 29).
* Tighten loose mounting bolts.
* Check/rotate/replace damaged or worn inserts (Page 34).
* Check/repair/replace worn or damaged wires.
* Resolve any other unsafe condition.

'''Every 40 Hours of Operation:'''

* Lubricate the table columns and leadscrews (Page 29).
* Clean/vacuum the dust buildup from inside the cabinet and off motor.

'''Every 160 Hours of Operation:'''

* Check/tension/replace the V-belts (Page 35).
* Lubricate the table height worm gear (Page 29).
* Lubricate the table height chain and sprockets (Page 30).
* Lubricate the drive chain and sprockets (Page 30).

'''Yearly:'''

* Change the gearbox oil (Page 30).
</div></div>

== External Links ==
*[https://www.grizzly.com/products/grizzly-20-5-hp-planer-w-spiral-cutterhead/g0454z Manufacturer Page]
*[https://cdn0.grizzly.com/manuals/g0454z_m.pdf Owner's Manual]
*Maintenance Doc

== Reference Material ==
[[File:G0454z_m.pdf]]

== Maintenance Logs ==
*1/31/25 - Nick, Locke, Pat
**Unloaded and setup machine
***Wings leveled, gearbox oil topped off, bed rollers checked
**Modifications made
***junction box on lower front left for ecogate current meter. switched to barrel jack for ecogate low voltage connector.
***hour meter installed on back left.
***broke off a tack welded nut on the front left corner for the adjustable foot. to be fixed later. machine is up on 4x4s for now. in service.
[[Category:Wood Shop]]
[[Category:Shop Equipment]]

Grizzly 20" Planer

2026-01-07T14:53:17Z

Tmnyhbs: /* Checklist */

{{Template:EquipmentPage
|owner = PS:One
|certification = yes
|hackable = no
|model = Grizzly G0454Z
|serial = 144367
|arrived = December 2025
|doesitwork = yes
|contact =
|where = Wood Shop
|value = $4000
|image = Grizzly_Planer.jpeg
|hostarea = Wood Shop
}}{{:Authorizations/Woodshop Basic}}

== Guidelines for proper use ==
# '''Always''' check your wood for nails or staples. Something as small as the staple at the end of a 1x1 can ruin the blades. If you're not sure, check the entire piece with the metal detector sitting on the table saw.
# '''Always''' measure the thickness of your work and set the initial and working blade height to remove only small amounts of material per pass. You will damage the blades if you manage to dig the machine out on your work.
# If the machine is making a strange noise when you use it, there is a problem, and you should '''ask for help.'''
# If the blades are dull or damaged, '''contact the area host immediately.'''
# If you break something, or damage the tool, '''contact the area host immediately.''' Don't let others do more damage or hurt themselves by using a broken tool.
# '''Always''' make sure that the dust collection bag isn't too full and is passing air freely.
# '''Always''' vacuum the machine, cutting area, and the table around the machine when you are done.

'''This tool requires authorization for use.'''

== Checklist ==
<nowiki>*</nowiki>NEED TO CREATE AND Add maintenance checklist document.*

Hour meter is installed.

We're going to try to follow the preventative maintenance schedule from Grizzly which is as follows.

<div class="toccolours mw-collapsible mw-collapsed">'''Grizzly Defined Maintenance
<div class="mw-collapsible-content">
'''Ongoing Cleaning and Protection:'''

* Vacuum excess wood chips and sawdust from the outside of the machine, inside the cabinet, and off the motor. Protect the unpainted cast iron surfaces on the table by wiping the table clean after every use—this ensures moisture from wood dust does not remain on bare metal surfaces.
* Keep tables rust-free with regular applications of products like G96® Gun Treatment, SLIPIT®, or Boeshield® T-9 from Grizzly.

'''Every 8 Hours of Operation:'''

* Clean the machine and protect unpainted cast iron.
* Lubricate the feed rollers bushings (Page 29).
* Tighten loose mounting bolts.
* Check/rotate/replace damaged or worn inserts (Page 34).
* Check/repair/replace worn or damaged wires.
* Resolve any other unsafe condition.

'''Every 40 Hours of Operation:'''

* Lubricate the table columns and leadscrews (Page 29).
* Clean/vacuum the dust buildup from inside the cabinet and off motor.

'''Every 160 Hours of Operation:'''

* Check/tension/replace the V-belts (Page 35).
* Lubricate the table height worm gear (Page 29).
* Lubricate the table height chain and sprockets (Page 30).
* Lubricate the drive chain and sprockets (Page 30).

'''Yearly:'''

* Change the gearbox oil (Page 30).
</div>

== External Links ==
*[https://www.grizzly.com/products/grizzly-20-5-hp-planer-w-spiral-cutterhead/g0454z Manufacturer Page]
*[https://cdn0.grizzly.com/manuals/g0454z_m.pdf Owner's Manual]
*Maintenance Doc

== Reference Material ==
[[File:G0454z_m.pdf]]

== Maintenance Logs ==
*1/31/25 - Nick, Locke, Pat
**Unloaded and setup machine
***Wings leveled, gearbox oil topped off, bed rollers checked
**Modifications made
***junction box on lower front left for ecogate current meter. switched to barrel jack for ecogate low voltage connector.
***hour meter installed on back left.
***broke off a tack welded nut on the front left corner for the adjustable foot. to be fixed later. machine is up on 4x4s for now. in service.
[[Category:Wood Shop]]
[[Category:Shop Equipment]]

Grizzly 20" Planer

2026-01-04T18:18:33Z

Tmnyhbs: /* Checklist */ Updated formatting for better readability, confirmed accuracy from the manual.

{{Template:EquipmentPage
|owner = PS:One
|certification = yes
|hackable = no
|model = Grizzly G0454Z
|serial = 144367
|arrived = December 2025
|doesitwork = yes
|contact =
|where = Wood Shop
|value = $4000
|image = Grizzly_Planer.jpeg
|hostarea = Wood Shop
}}{{:Authorizations/Woodshop Basic}}

== Guidelines for proper use ==
# '''Always''' check your wood for nails or staples. Something as small as the staple at the end of a 1x1 can ruin the blades. If you're not sure, check the entire piece with the metal detector sitting on the table saw.
# '''Always''' measure the thickness of your work and set the initial and working blade height to remove only small amounts of material per pass. You will damage the blades if you manage to dig the machine out on your work.
# If the machine is making a strange noise when you use it, there is a problem, and you should '''ask for help.'''
# If the blades are dull or damaged, '''contact the area host immediately.'''
# If you break something, or damage the tool, '''contact the area host immediately.''' Don't let others do more damage or hurt themselves by using a broken tool.
# '''Always''' make sure that the dust collection bag isn't too full and is passing air freely.
# '''Always''' vacuum the machine, cutting area, and the table around the machine when you are done.

'''This tool requires authorization for use.'''

== Checklist ==
<nowiki>*</nowiki>NEED TO CREATE AND Add maintenance checklist document.*

Hour meter is installed.

We're going to try to follow the preventative maintenance schedule from Grizzly which is as follows.

'''Ongoing Cleaning and Protection:'''

* Vacuum excess wood chips and sawdust from the outside of the machine, inside the cabinet, and off the motor. Protect the unpainted cast iron surfaces on the table by wiping the table clean after every use—this ensures moisture from wood dust does not remain on bare metal surfaces.
* Keep tables rust-free with regular applications of products like G96® Gun Treatment, SLIPIT®, or Boeshield® T-9 from Grizzly.

'''Every 8 Hours of Operation:'''

* Clean the machine and protect unpainted cast iron.
* Lubricate the feed rollers bushings (Page 29).
* Tighten loose mounting bolts.
* Check/rotate/replace damaged or worn inserts (Page 34).
* Check/repair/replace worn or damaged wires.
* Resolve any other unsafe condition.

'''Every 40 Hours of Operation:'''

* Lubricate the table columns and leadscrews (Page 29).
* Clean/vacuum the dust buildup from inside the cabinet and off motor.

'''Every 160 Hours of Operation:'''

* Check/tension/replace the V-belts (Page 35).
* Lubricate the table height worm gear (Page 29).
* Lubricate the table height chain and sprockets (Page 30).
* Lubricate the drive chain and sprockets (Page 30).

'''Yearly:'''

* Change the gearbox oil (Page 30).

== External Links ==
*[https://www.grizzly.com/products/grizzly-20-5-hp-planer-w-spiral-cutterhead/g0454z Manufacturer Page]
*[https://cdn0.grizzly.com/manuals/g0454z_m.pdf Owner's Manual]
*Maintenance Doc

== Reference Material ==
[[File:G0454z_m.pdf]]

== Maintenance Logs ==
*1/31/25 - Nick, Locke, Pat
**Unloaded and setup machine
***Wings leveled, gearbox oil topped off, bed rollers checked
**Modifications made
***junction box on lower front left for ecogate current meter. switched to barrel jack for ecogate low voltage connector.
***hour meter installed on back left.
***broke off a tack welded nut on the front left corner for the adjustable foot. to be fixed later. machine is up on 4x4s for now. in service.
[[Category:Wood Shop]]
[[Category:Shop Equipment]]

Tablesaw jigs and sleds

2025-12-19T18:48:06Z

Tmnyhbs:

We have a variety of jigs and sleds for the sawstop almost all are bespoke jigs made by our members. most live under the ooutfeed table of the saw for now.

=== Crosscut sleds ===

[[File:Crosscsledssm.jpg]]
=== MicroJig 360 Sled ===
Link to manual: https://cdn.prod.website-files.com/5cfd83cf1c26ab7392063e1f/6723c1fd2cd9cd1026f794e3_MJ_360_Sled.pdf

Product information: https://www.microjig.com/products/360-sled
[[File:MicroJig 360 Table Saw Sled.jpg|none|thumb]]

=== spline cutting jig ===
[[File:Splinejigsm.jpg]]
=== tenoning jig- delta ===

Kept in cabinet under handtools bench.
fancy and lots of knobs

[[File:Deltatenonsm.jpg]]

=== taper cutting ===
one with a hinge and such for narrow things like legs.

[[File:Taperwhingesm.jpg]]

one that's a guide-track board to which you attach your work piece at whatever angle with double sided tape.

[[File:Tapersledbsm.jpg]]

=== sacrificial fences ===

for those very very thin rips n such

[[File: Sacrificialssm.jpg]]
[[Category:Wood Shop]]
[[Category:Shop Equipment]]

Tablesaw jigs and sleds

2025-12-19T18:47:41Z

Tmnyhbs: Added 360 degree sled to page.

We have a variety of jigs and sleds for the sawstop almost all are bespoke jigs made by our members. most live under the ooutfeed table of the saw for now.

=== Crosscut sleds ===

[[File:Crosscsledssm.jpg]]

=== MicroJig 360 Sled ===
Link to manual: https://cdn.prod.website-files.com/5cfd83cf1c26ab7392063e1f/6723c1fd2cd9cd1026f794e3_MJ_360_Sled.pdf

Product information: https://www.microjig.com/products/360-sled
[[File:MicroJig 360 Table Saw Sled.jpg|none|thumb]]

=== spline cutting jig ===
[[File:Splinejigsm.jpg]]
=== tenoning jig- delta ===

Kept in cabinet under handtools bench.
fancy and lots of knobs

[[File:Deltatenonsm.jpg]]

=== taper cutting ===
one with a hinge and such for narrow things like legs.

[[File:Taperwhingesm.jpg]]

one that's a guide-track board to which you attach your work piece at whatever angle with double sided tape.

[[File:Tapersledbsm.jpg]]

=== sacrificial fences ===

for those very very thin rips n such

[[File: Sacrificialssm.jpg]]
[[Category:Wood Shop]]
[[Category:Shop Equipment]]

File:MicroJig 360 Table Saw Sled.jpg

2025-12-19T18:45:29Z

Tmnyhbs:

Adjustable sled for completing angled cross cuts on the table saw.