Planetary Gear Spinner | Print-in-Place

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Probably the smoothest gear spinner I’ve made so far 😅
 

• This is a fully print-in-place planetary spinner with 8 moving planet gears and herringbone teeth, so it feels super smooth and satisfying when spinning it. The whole thing prints assembled — no supports, no screws, no glue.
• The outer ring has a nice grip to it, and the center finger hold is really comfortable once it gets spinning.
• I spent way too much time tuning the clearances and chamfers so the gears wouldn’t fuse together while still keeping that dense mechanical feel 🔥

Print Settings

• PLA
• 0.4 nozzle
• 0.16 layer height
• Optimized for Bambu Lab A1

Features

✅ Print-in-place
✅ No supports
✅ Spins right off the bed
✅ Herringbone gears
✅ Super satisfying movement
✅ Tiny mechanical chaos machine ⚙️🌀

75mm diameter / 14mm thick

🔄 Filament Color Changes

For a two-color print, add filament swaps at:

• Layer 23
• Layer 61

That setup gives the spinner a really clean accent separation on the top and bottom surfaces 🎨⚙️

If you like this model, feel free to check out my other designs on my profile or visit the links below:
 

https://skybuildstudio.com/
 

https://linktr.ee/skybuildstudio