Summary

A little toy, to demonstrate a planetary gear. Made it just to enjoy constructing with OpenSCAD.

Click -> Short Video

Instructions

Print p2_mGearShaft 6 times and everything else once. Assemble it without any glue. The crank handle consists of two pieces, printed in one step. You may use a little force to separate them.

I printed mine on a UM2:
Layer height: 0.1
Shell thickness: 0.8
Bottom/Top thickness 0.6
Fill Density: 30 (crank and crank handle: 100)

I recommend to print the crank and two crank handles in one step.

Planetary Gear Toy