First Test Rig Using the First Open Gears Fabricated Without a Machine Shop. These Gears Prove That Expensive Machinery Is Not Always Neccessary.

Notice the Weight? It Is A 17mm Socket...

Basically Still a Thornson Device. The First Step Toward Surpassing That Design Was Installing Movement Limiting Stops Directly Onto The Planet Gears. 

The First Motor We Used Was A Modified Windshield Wiper Motor.

4 "Wheels" Working Together. This Machine Had Enough Excess Thrust To Push Objects Along On A Workbench.