Tiny (40mm) fidget spinner

Small fidget spinner, 40mm diameter. It all prints as one piece with no need for additional bearings and good for around 5 seconds spin.
I have stuck self adhesive rubber feet to the centre spindle which gives something nice and tactile to grip onto.
The printed plain bearing in the centre is made with a 0.3mm clearance which works well on my printer, came off ready to spin.

Changing the scale of the model may not work as that will affect the clearance in the plain bearing.

I printed at 0.2 layer height and 100% infill as it needs the mass to spin nicely.