Mine is simplistic, no enclosure yet, but very portable.
Right angle GearMotor, right-angled again with a 3/8" drill attachment, and I'm in business. Hums along at slowly (62 rpm) but with some serious torque.
Gearmotor was DC so I had to build the necessary electronics to convert. (thanks for the advice, Yuri!)
Of course the hopper is too small, but improvements will be made along the way...
