We organise our own annually Dutch version of a pinewood derby. This is an unknown thing in The Netherlands, so we had to print our own wheels. The problem with my first design was that the stem often would break off when the kids tried to adjust the angle of their wheels by pulling and pushing on it.
This new design is a lot stronger so I hope that next year, all the wheels stay in one piece.
Derbiwiel2.123dx | 136.0KB | |
derbiwiel2.stl | 690.9KB |