I designed a replacement wheel for a toy train.
Probably can be used for other toy designs build from scratch.
Wheel diameter is 37.4 mm
axis 3 mm
Print Rite DIY
Printed in green PLA.
Sliced with Slic3r.
Set 4 perimeters and 4 - 5 top/bottom solid layers it should be kids resistant.
The print could come out better, maybe different slicer settings or different slicer program.
I play with electronics, kids toys, replacement parts, puzzles,...