Colleone's Rotary Tumbler Remix

A remix of the Rotary Tumbler by Colleone. These are the changes:
1. A 3D printed base instead of using the wood plate.
2. Longer and higher box for the motor and electronics.
3. An Arduino based digital motor controller that supports settings the motor speed and the duration.
4. The 3D parts are cut to fit smaller printer print-volume.

Parts:
Follow the original part list for building the tumbler.
For the digital controller:
12V DC 2A Power supply.
Resistors: 2X470 ohm, 1K ohm, 330