I have been thinking about making a big one of these using a smart string.
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LoginI would wrap a smart string around the perimeter of a bicycle rim (leaving a few spokes in place to keep it from becoming oval). Drill opposing holes in the rim and attach the shaft of a DMX controlled motor to one hole and get the smart string signal through a rotating electrical connector attached to the other hole.
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LoginMake a yolk to hold the motor body and the rotating connector body in alignment allowing the motor to spin the bicycle rim like the toy example. Adding a second motor to control the yolk orientation would make it even more interesting.
Rick S