100:1 gearlook at http://www.youtube.com/watch?v=vvIyG6DhlZE for milled versionThe ball bearings are 623. The big ball bearings are 6201.The two inner wheels must be glued together.The excenter shaft has to be made of steel.
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Imported from Thingiverse: https://www.thingiverse.com/thing:3736
Original creator: theodleif