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allenb, any pictures of a continuous perf bottom? I don't quite know what you mean by it, or what the difference is.

Attached is a revised design.

Its a dual chamber system. The RC stands higher than the Cooling Chamber. after a roast, I can swivel the chute over and dump the beans via gravity into the cooling chamber, switch over the air to the cooling chamber via a diverter valve and cool the beans while I fill the roast chamber with a second batch ( will eventually design in a hopper system). Once the beans are done cooling, with the same swivel shaft system I can dump the cool beans into a container.

The drawing is getting even hairier, but I think it best depicts the layout if you can make sense of it.

Please share your thoughts