SpinRings - Fidget Spinner

SpinRings are my take on a classic 3D printed design. A series of concentric spherical rings that print as one piece, interlocking and spinning inside of one another.

My version, built in Shapr3D, features a couple of small tweaks. First the outer ring has a concave surface making it easier to grip. This concave edge also allows the SpinRings to stand on their edge and roll. Finally you will find a small divot in the centre piece making it easier to locate the middle of the SpinRings by touch.

Prints fine with a 0.4 or 0.6 nozzle, standard PrusaSlicer settings. The 0.3mm tolerance between the rings should not cause problems, I've printed tons with zero stuck.