Duplo Tank Treads

thingiverse

These tank treads substitute the wheels on basic duplo chainable cars. I've provided the SCAD file where I designed the entire assembly, plus individual STL files for the wheel and tread segment. It takes four wheels and 38 segments to make both treads, and the segments simply click together. Cura warned about overhang on the groove around the wheels, but I was able to print it without any issues. The results may vary. The treads are quite stiff when you first assemble them, but they'll loosen up with use. They function better rolling over a rug or something soft rather than hardwood, but my four-year-old seems unbothered. Have fun printing, and let me know how it turns out!