Mesmerizing 3:1 Planetary Gears Visualizer

This set of planetary gears has a 3:1 gear reduction and has bars attached to the center of the planet gears to visualize their motion. Tracing the tip of the bar will result in a shape that is similar to a rose curve with 3 petals.

Video of the Motion of the Gears

The gears themselves are print in place, but the bars must be printed separately and inserted into the gears.

The sun gear can be driven by a drill using a 6mm hex bit