Iris Gear Box - Print-in-Place Planetary Puzzle Box with 5 Spinning Doors, No Supports

A round secret box that opens like a camera iris. Hold the base and **twist the lid about 26°**. Five doors spin out of the opening and then close again. Under each door is a 12-tooth gear that runs around a fixed 28-tooth sun gear. Each door turns 60° on its own pivot and travels around with the lid at the same time. All 7 parts print together in one go, with no supports and no assembly. - **Size:** Ø 90 × 61.6 mm - **Opening:** Ø 34.9 mm into a wide hidden compartment (Ø 85 mm at the bottom,…

♥ 0