Ball Bearing Pet Toy

thingiverse

A fun pet toy with a steel ball bearing inside makes noise and rolls neatly. Any larger ball bearings will work, but I have 11.11mm ones. You don't press the bearing through, instead, drop it in during printing. Set carefully as many bearings as you like into the shell while it's at 50-70% completion. Be mindful of the hot-end and place the bearing below the current layer to avoid collision. With a small magnet, combine two or more toys for different spinning effects.