Norm Jonkman’s Tower Crane

March 16, 2014 · by David Gilbert · Cranes & Derricks, Erector Sets, Jonkman, Norm

Norm Jonkman's Tower Crane

(3/7/2014) Norm writes: This is my latest Erector set project. I originally made it for the AC Gilbert Convention in Chicago in July 2013. I’ve revised it to improve functionality several times since then. This is a model of a tower crane, used in constructing tall buildings. My model has 3 motors to control rotation, load and tram as illustrated in the video.

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