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Homeroasters.org » BUILDING A ROASTER » Drum Roasters
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Bobby M15's drum
dmccallum
Has the topic not come up before? Looking at videos of commercial roasters they seem to have fairly large holes or at least of comparable.

Be interesting to see the answer to this one.
 
BobbyS
I don't know if the topic gas come up before or not. But searching doesn't seem to come up with what I am looking for.

Most of the ones I have seen have what looks like smaller holes in comparison to the beans.

https://www.youtu...NPxUVvfbG4

https://www.youtu...TmEim2JgRU

https://www.youtu...amp;t=571s
Edited by BobbyS on 10/09/2017 15:31
 
BobbyS
I did see a forum where a guy said he had an Ambex YM2 and said the hole size was 4mm ~.157
Edited by BobbyS on 10/09/2017 18:13
 
BobbyS
OK, got some ss steel with .157 holes in it and it didn't work any better. I messed around with the stirring blades and got an acceptable usage with the cooling tray material I started with.

I am waiting for the front and back plates to come back from the machine shop. then I will start on the bean hopper on top. I will probably start making a cart for it now too.
 
Ringo
I wonder if the outside blade angled so steep is wedging the beans to the outside pot and thats where the bind is. your holes look right to me and should work. Funny story the uhmw you used on the stirrer is called virgin if its white. I ordered two sheets for work and the bill came into the office for $500 for two virgins, i got a visit from the owner.
All you need in life is ignorance and confidence, and then success is sure. Mark Twain
 
BobbyS
Ringo wrote:

I wonder if the outside blade angled so steep is wedging the beans to the outside pot and thats where the bind is. your holes look right to me and should work. Funny story the uhmw you used on the stirrer is called virgin if its white. I ordered two sheets for work and the bill came into the office for $500 for two virgins, i got a visit from the owner.


haha........he must be out of contact with $$$$ in 2017.

I will try the angle change next and see how that works. thanks!
 
BobbyS
OK, getting a little farther along. Testing function with some roasted beans.

https://www.youtu...y5Fwxdz0js
 
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