This is a fun print to keep you occupied when board, 

designed by https://www.thingiverse.com/austinvojta on thingiverse 

           Rafts: No

Supports: No

Resolution: 0.2 mm

Infill: 20%

• Notes:

This thing is optimized for 0.2 mm layer height. Please try that first before any other resolutions. It's also optimized specifically for a 0.4 mm nozzle width, so no guarantees it will work well if you're using another size.

20% infill gives it a tiny bit of heft so it feels better to spin around, but you could probably go up or down from this number depending on your preferences.

Some other tips for best print results: use a skirt that's close to the model and goes up 5-10 layers, keep part cooling fan off for first layer then on for the rest, turn the model diagonally in your slicer so that X and Y axes move together for most of the moves, use 3-5 vertical shells/perimeters to avoid curling, and print at the coolest temperature you reasonably can for your material to avoid stringing or lamination where it's unwanted.