Everyone who touches this fidget is fascinated by it.

Challenging to print with 0.4mm walls and 0.4mm gaps. You need good first layer adhesion and clean travel. My X1 has no problem with it in PLA or PETG. Looks nice in slilk PLA. It is spilt into top and bottom parts to make it simple to use two colors. It also looks nice in bi and tri-color filaments.

The step model is x 2 scale so size 50% in the slicer.

UPDATE

After more experience printing these concentric ring fidgets note:

You get the cleanest prints when seams are 'hidden' in corners so you want back or aligned seam alignment.

The filament profile advanced setting "Setting Overrides|Travel distance threshold" needs to be set to zero to force retraction when travelling from one ring to the next. The random alignment suggestion may still help although I think it mostly helped by increasing travel distance and so forcing retractions.

UPDATE

Revised profile added.