I was trying to edit a batch of images to Flickr with their batch tool, but the commenting was duplicating anything that I wrote (several times), so I gave up for now and simplified the set I was putting together. I am intending to post all my older designs for the drum—sections, elevations as well as these perspectives—but that will have to wait…
I decided not to go with this design pretty much because I changed my mind about the importance of air control with this batch size. I had convinced myself that at this batch size—80g to 500g—that air flow was less important. but while walking over to a friends home for dinner on night a while back, I re-thought my decision. So I am shifting over to a closed system so that I can adjust air flow much like larger roasters. I am not sure if (or how) I will keep the rest of this design. The dimensions of the chamber itself still feels correct to me, and the vane size and placements as well… I had considered possibly moving to something that agitates the beans in a way to keep them moving off the hot surface of the drum. I am leaning though, toward keeping this setup since I like how it maintains a relatively consistent mass - which my theory (somewhat supported by a scientific article (which I will post a link soon, promise) that the coffee will roast more evenly when it does this. Too much agitation will cause it to roast less evenly. so without much adoo, here are the drawings.
(BTW, notice the new fancy image viewer I found! It’s Pictobrowser a flash plugin written by a couple NYC interaction designers that pulls flickr sets into your site—all contained in this neat little package. The wordpress plugin was written by Kumara Sastry. I altered it a bit to get the original size images to load and so you could zoom them and read the notes… I like it a whole lot. It’s nice)
UPDATE_ I finally got all my drawings from sketchup posted and annotated - well, okay some of the annotations are cut and pasted from other annotations, but whatever… - so they are all in the set now. And if you care, now have a flickr account just for Deft.. you can see what’s there, uhh, here.