More of Bill Klein’s Machines

March 16, 2014 · by David Gilbert · Erector Sets, Klein, Bill, Machines

Bill Klein’s Robot

This robot stands 4 feet tall. It walks and turns right and left, has lighted eyes, swinging arms and a motor and track to run each foot.

Bill Klein’s Bulldozer

Bill Klein writes: This custom built bulldozer has a large blade, tracks, forward and reverse operation, and a winch on the back.


  • Bill Klein’s Centrifical Trainer

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