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JackH
01/04/2019 10:55 AM
2 years today...Miss you Ginny!

JETROASTER
01/04/2019 4:24 AM
A little shout for the G'ster. 2 yrs. roar

allenb
12/27/2018 5:14 AM
Hi Brandon, please disregard the "please update". I think we're all up to speed now. The need for cache clearing get's me every time! limb

NetriX
12/26/2018 11:36 AM
Update? pouring Merry Christmas back atcha

allenb
12/26/2018 3:07 AM
Merry Christmas Brandon. Please update soon! christmas tree

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Drum roaster from scratch
robkun
Hi everyone,

I am really new to this forum, and generally I am a newbie in the filed of home coffee roasting.
Nevertheless, in the past I have tried several methods to roast coffee, but seemingly drum roasters are the best suitable machines to get the right roast results. Furthermore, instead of buying a roaster, I have decided to build one from scratch. ThumbsUp

I have already some CAD drawing about the main components of the housing, but I failed to figure out how the rotating shaft (diam.: 12 mm, for the drum rotation) is mounted to the bushing and the front panel of the roaster. Is there any special flanged bearing unit to use? I also don't now, if one must use heat resistant (high temperature) ball bearings or not. How did you mounted the beraing and the shaft in your roasters?

Reagrding size of the drum: it is about 20 cm (~ 8inch) in diameter and has 25 cm (~10 inch) length.

Since I am quite in the beginning of this project, in the planning phase, I don't have any picture to post, yet.

Thank you for your help in advance!

Best regards from Germany,
Robert
 
renatoa
Welcome

So Stronghold is not giving good results... Grin BBQ grill
DIY: TO based IR to bean 800g
Moded commercial: Dieckmann RoestMeister, Nesco, popcorn.
PID/ramp/soak controllers, MS6514 USB/Artisan/Apps/popC/ESP32
Grinder: mod'ed Porlex to 47 conical burrs
 
robkun
Hi renatoa,

what do you mean? Grin
 
renatoa
That could be other machines in the 1 kg ballpark you are aiming (supposed on drum size), easier to build than a drum machine (for me), and giving good results, even pro grade I dare to say.

Stronghold (S7) is a commercial such machine, costing $$$$, that can be replicated pretty easy, despite the futuristic look it exhibits.
DIY: TO based IR to bean 800g
Moded commercial: Dieckmann RoestMeister, Nesco, popcorn.
PID/ramp/soak controllers, MS6514 USB/Artisan/Apps/popC/ESP32
Grinder: mod'ed Porlex to 47 conical burrs
 
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