After making Thing-O-Fun's functional differential gear system and playing with it for a while I realized that this thing just had to be motorized. I had a Solarbotics GM9 gear motor lying around and it was a perfect fit. All that was needed was a modified input shaft to match up with the shaft on the gear motor and a base to hold the batteries and power switch.
I included the scad file so that you can easily change the switch opening to fit your switch.
Watch it in motion at http://youtu.be/bFceF0CeGFk
| base.scad | 1.2KB | |
| base.stl | 197.7KB | |
| Input_Shaft.scad | 556.0B | |
| Input_Shaft.STL | 71.8KB |
