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Download title Date Author Version Downloads Comments Rating
Coffee Library
Helical Drum Vane Radius Formulas July 07, 2015 allenb -- 938 0 --
Helical Drum Vane Radius Formulas The calculations give you one vane traveling 360 degrees. For calculating the radius values for a vane only traveling 90 degrees (for a 4 vane drum) Im assuming you will need to use (pi x diameter) /4 in steps 1 and 2 for the right triangle base.
Cupping With George August 29, 2007 ginny -- 842 0 --
Cupping With George An absolutely wonderful story written by Jim Schulman. This piece is posted here with Jim\'s blessing
All About Coffee - Ukers April 07, 2007 ginny -- 1659 0 --
All About Coffee - Ukers The classic book on coffee growing, processing, and preparing. It is no longer in print.
Files for Sharing with Members
Nefarious History of the Sustainability Movement January 17, 2024 allenb -- 38 0 --
Nefarious History of the Sustainability Movement Short history of how everything sold today came to supposedly be sustainable
Nefarious History of the Sustainability Movement October 15, 2023 allenb -- 135 0 --
Nefarious History of the Sustainability Movement Short history of how everything sold today came to supposedly be sustainable
Gas burner BTU calculator spreadsheet October 13, 2023 skpacman -- 99 0 --
Gas burner BTU calculator spreadsheet Use this spreadsheet to determine gas burner orifice diameter. Shows burner BTU output using your specific gas pressure and orifice diameter as well as lbs per hour of propane consumption. Also works for natural gas
Dan Bollinger's Spouting Bed Tests October 03, 2023 allenb Spouting Bed Tests 114 0 --
Dan Bollinger's Spouting Bed Tests Minimum pressure to maintain a spouting action for various bed heights, orifice diameters and perforated plate.
Roastlogger V3.4 TC4 sketch April 03, 2020 JackH -- 900 0 --
Roastlogger V3.4 TC4 sketch The latest Roastlogger sketch for the TC4
Tamarian's 10kg Fluidbed CAD Drawing March 31, 2019 JackH -- 1273 1 --
Tamarian's 10kg Fluidbed CAD Drawing File #2
Tamarian's 10kg Fluidbed CAD Drawings March 31, 2019 JackH -- 1106 1 --
Tamarian's 10kg Fluidbed CAD Drawings Main roaster CAD Drawing
THE ART AND SCIENCE OF ROASTING March 12, 2019 JackH -- 941 3 --
THE ART AND SCIENCE OF ROASTING Roaster video uploaded by JitterzZ. In SWF format
Randy G's HotTop alarm files December 28, 2016 JackH -- 802 0 --
Randy G's HotTop alarm files A full set of "Alarms" you can upload along with a graph of a roast. It would allow you to load the alarms, use the graph as a template background, run the roaster with Artisan control, and compare what your machine does to what mine did.
Using Excel and Arduino for Roaster Control October 14, 2016 JackH XP and later (Not WI 1026 1 --
Using Excel and Arduino for Roaster Control Excel generated profiles executed automatically
using Arduino-controlled stepper motor to adjust
PWM heating. PDF Documentation; ?C and ?F Excel
workbooks and Arduino sketches.
Written by ChicagoJohn
Roastlogger PID Mode Tips January 26, 2014 allenb -- 878 0 --
Roastlogger PID Mode Tips Tips for entering Roastlogger PID mode ramp segments from Tom Coxon
Controlling a HotTop Roaster With Artisan: The Basics December 20, 2013 JackH V 0.6 2798 0 --
Controlling a HotTop Roaster  With Artisan: The Basics Written by Barrie Fairley 2014/9/12
Artisan TC4 installation procedure for Windows September 22, 2013 JackH 1.0 1550 6 --
Artisan TC4 installation procedure for Windows A step by step procedure that will get your Arduino TC4 Sketch loaded and the Artisan application running. For Windows XP and 7.

For the TC4 shield and Arduino Uno. It has been reported that it works with the TC4C too.
RoastLogger TC4 installation procedure for Windows September 16, 2013 JackH 1.0 9/10/2013 1180 4 --
RoastLogger TC4 installation procedure for Windows A step by step procedure for configuring the TC4 board for use with RoastLogger for Windows.
Barrie - Hot Top / Gene Cafe Comparison Sheet April 09, 2013 ginny -- 967 0 --
Barrie - Hot Top / Gene Cafe Comparison Sheet Hot Top / Gene Cafe Comparison Sheet