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10/19/2021 6:22 AM
Welcome tarunk!
10/17/2021 12:40 PM
Ploni and nader fouad, Welcome!
10/15/2021 2:19 AM
merlot85, maycondelpiero and hoeltz, Welcome !
10/14/2021 10:06 AM
Thanks for the addition to the group. Seriously considering building a drum roaster along the lines of oldgrumpus's. Love the design and craftsmanship.
10/14/2021 4:00 AM
Morning, ar3mia ! and... 
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 Control for drum roaster
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| BobbyS |
Posted on 05/25/2017 6:11 PM
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 1/4 Pounder  Posts: 179 Location: Joined: July 02, 2011 |
Does a drum roaster respond fast enough for PID control? |
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| Ringo |
Posted on 05/31/2017 7:07 AM
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 Pounder  Posts: 474 Location: Joined: January 14, 2010 |
Yes, most commercial drums have pid control. This is an update I want to make to my drum someday. I believe I could have more consistent results with pid.
All you need in life is ignorance and confidence, and then success is sure. Mark Twain
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| renatoa |
Posted on 05/31/2017 7:20 AM
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 Administrator  Posts: 1854 Location: Europe Joined: September 30, 2016 |
Be careful to evaluate if a roaster is really a drum roaster... the presence of a drum don't make it automatically a drum roaster. The true nature of a roaster is the predominant source of the heat. Could be hot air, and drum only an agitation method. In this case is a convection roaster, and air temp response to PID is very good. DIY: TO based IR 750g
Moded commercial: Dieckmann RoestMeister, Nesco, popper(s). TC4ESP, MS6514, USB/Artisan/Apps, PID controllers Grinder: MBK Feldgrind, mod'ed Porlex to 47 conical burrs, vintage PeDe Dienes, Kinu M38 Gaggia Mini, Aeropress, drip |
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| BobbyS |
Posted on 05/31/2017 6:43 PM
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1/4 Pounder Posts: 179 Location: Joined: July 02, 2011 |
thanks! |
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| BobbyS |
Posted on 06/10/2017 1:56 AM
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1/4 Pounder Posts: 179 Location: Joined: July 02, 2011 |
I'm just gonne keep these questions in this thread instead of making a new one. Question: for a 1k to 2k roaster, how big of a blower would I need. I have my eye on a round pan, 18 inch dia. for a cooling tray |
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| dmccallum |
Posted on 07/03/2017 6:25 AM
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 1/4 Pounder Posts: 92 Location: London, UK Joined: November 24, 2015 |
The San Franciscan SF-1 uses a 130CFM blower. I intend to use this one for my build - https://www.grain...plit-3FRG2 The SF-1 uses a single blower for both roast draw and cooling tray and switch via a gate/valve. You might get away with less, but assuming San Fran have it right. |
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| BobbyS |
Posted on 07/04/2017 1:15 AM
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1/4 Pounder Posts: 179 Location: Joined: July 02, 2011 |
good to know dm, thanks! I have a 227cfm that I am going to use for the cooling tray. I think I will give it a shot to use it for both too. |
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