Nut and Bolt

thingiverse

Printed on a BIbo, designed with Tinkercad precision. Running out of time during the demo led me to stop a print midway through. The purple Nut and Bolt in the picture are still functional, surprisingly. You can even screw them together with ease. The first attempt required pliers, but subsequent uses make it simpler every time. Adding a tiny bit of bar soap to the threads might help break it in smoothly on the first try. I just printed another one, so I'll test this theory and see if it improves the performance.