ORBIT — Planetary Gear Fidget | 5:1 Kinetic Desk Mechanism STL

**TURN THE SUN. WATCH THE PLANETS WALK.** A whole little mechanism in a 68 mm housing. Hold the outer ring and turn the centre: three planets travel around the sun, carrying an open crown with them. The movement is the design. The 12-tooth sun, three 18-tooth planets and fixed 48-tooth ring give a 5:1 sun-to-carrier relationship. Contrasting printed parts make the motion easy to follow, while the removable crown keeps the mechanism accessible for assembly and adjustment. **Designed details** -…

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