Posted Sat Jun 9, 2007, 9:34am Subject: Re: Can Roaster!
mattreynolds Said:
Update:
The first roast was completed earlier tonight. I roasted about 1/4 pound of a Costa Rica Tarrazu to about a full city+ to a Vienna. It was a little darker then I was planning on going but we will see.
Looking great! A question: does the heat of roasting affect the drill at all? I used a piece of thread rod to put some distance between the drum and the drill (maybe I didn't need too) but since I already had the threaded rod I'm not out anything.
Also how are you guys cooling your roasts?
(I'll update with my half-pound roaster when I have it done)
I have a mesh bowl inside a cardboard box, with a shopvac inside the box and underneath the mesh bowl. This is so it will suck the hot air off the beans.
Posted Mon Jun 11, 2007, 11:52am Subject: Re: Can Roaster!
The quarter pound (that's all the drill would safely support before tipping and I want to avoid any clamping so I can easily dump the beans) is complete. See a movie of it in action HERE.
SurpriseMe Senior Member Joined: 11 Jun 2007 Posts: 44 Location: Upstate NY Expertise: I love coffee
Posted Mon Jun 11, 2007, 6:38pm Subject: Re: Can Roaster!
This has got to be the best use of a soup can I've ever seen. Soup is good, sure, but coffee....
Tim, you questioned the effect of the heat source on the drill. It's a valid question. However, an encouraging fact is how hot drill bits often get, especially when drilling pilot holes in metal--hot enough to severely burn fingers. (This just happened to a friend yesterday) Therefore, I doubt the heat conducted down several inches of threaded rod should prove to be a problem. You could always attach cooling fins on the rod near the drill.
Posted Tue Jun 12, 2007, 10:58am Subject: Re: Can Roaster!
SurpriseMe Said:
This has got to be the best use of a soup can I've ever seen. Soup is good, sure, but coffee....
Tim, you questioned the effect of the heat source on the drill. It's a valid question. However, an encouraging fact is how hot drill bits often get, especially when drilling pilot holes in metal--hot enough to severely burn fingers. (This just happened to a friend yesterday) Therefore, I doubt the heat conducted down several inches of threaded rod should prove to be a problem. You could always attach cooling fins on the rod near the drill.
I agree completely, I was more concerned with the drill being close to the heat source itself (some photos above don't show any space between the back of the drum and the drill chuck. The drum would be of considerable temperatures for the length of the roast.
SurpriseMe Senior Member Joined: 11 Jun 2007 Posts: 44 Location: Upstate NY Expertise: I love coffee
Posted Tue Jun 12, 2007, 7:41pm Subject: Re: Can Roaster!
Wow....did I jump to a conclusion, or what? In re-reading the posts, I don't know why I assumed you meant heat conducted through the rod and not the drill's proximity to the heat source. That'll teach me...
Well, anyway, the proximity issue is a good one to keep in mind. I know that if I built such a roaster, I would over-compensate with an overly-long length of rod, telling myself, "just in case, just in case."
Posted Tue Jun 12, 2007, 9:48pm Subject: Re: Can Roaster!
SurpriseMe Said:
Wow....did I jump to a conclusion, or what? In re-reading the posts, I don't know why I assumed you meant heat conducted through the rod and not the drill's proximity to the heat source. That'll teach me...
Well, anyway, the proximity issue is a good one to keep in mind. I know that if I built such a roaster, I would over-compensate with an overly-long length of rod, telling myself, "just in case, just in case."
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