Another addition to the fidget spinner craze. I call these Animal Spinners.
Animal Spinners use fishing sinkers to help increase inertia, but overall mass is still low so I'd recommand using full ceramic bearing to get good speed.
Sinkers are low cost and can be purchase at Walmart.
'Eagle claw Steel Egg Sinkers'
or just search Amazon for
No specific settings required. Use whats best for your printer.
May need to apply adhesives to help hold part to bed.