Kugelbahn

thingiverse

The first iteration of this toy utilizes ball bearings as its core component. To produce it, a single-extruder printer is sufficient, but be prepared to invest some time in removing excess material. A key factor in successful printing is locating a vertical pipe devoid of support material, allowing the ball to fall freely into place during the process. Conceived using Sketchup, this design caters specifically to 12 mm balls.