I'm building a prototype machine that requires a small hopper and a screw feed system for feeding a granular material similar to sawdust at a constant rate. What I'd like to find is some sort of reasonably priced machine that has a system like this which I can scavenge and adapt to my prototype. Does anyone know of such a machine? Maybe something like an automatic animal feeder?
If the hopper could hold 1 to 5 pounds, that would be about right. A screw diameter of 0.5 to 1 inch would be about right. I'd like it to be driven by a little electric motor.