Ball Bearing Fidget Spinner (Print In Place)

Simple print-in-place fidget spinner! Print with no supports, no raft. After printing, spin the inner ring and the outer ring in opposite direction to break any connections that may have formed on the first layer. For the lowest friction, ensure all balls are freely moving. Even one stuck ball will significantly reduce performance.

For a cool look, try switching filaments mid-print!

If you make one of these, please post a make! I'd love to see how your printer handles the geometry.

Print Settings

Printer Brand:

Prusa

Printer: I3 MK3S

**Rafts:**

No

Supports: No

**Resolution:**

0.2

Infill: 30%

**Filament:** 3DD PLA RedPost-Printing =============

Get it while it's hot!

To have an easier time breaking the bearing, try breaking it as soon as the print completes. Ensure every ball is freely moving, even one connected ball bearing will cause lots of friction!

How I Designed This ===================

I scaled down the remixed model by 80%, and made two copies, each of their bearing housings intersecting with the original model.

Category: Mechanical Toys