Motorized Functional Differential Gear System
thingiverse
The Thing-O-Fun's functional differential gear system can be enhanced with a Solarbotics GM9 gear motor. The input shaft needs modification for compatibility, while a base holds batteries and power switch. The scad file allows easy customization of the switch opening. View it in action at http://youtu.be/bFceF0CeGFk. To assemble, skip printing the shaft and handle, line up GM9 shaft with Input Shaft, solder wires onto GM9 terminals, mount motor using M3x22 screws, solvent-weld gear system to base, install battery holder and switch.
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