Giovanni Boato

I watched all over the internet for a 3d printed version, seems like nobody did it yet, so I had to. I'm still refining the tolerances a bit, but it's very promising. It probably won't ever be as good as a metal one but considering I made it with steel balls from the old magnetic toys and a few screws I was surprised it worked in the first place. If anyone is interested I'll probably upload the f360 project on thingiverse as tolerances need to be tweaked from 3d printer to 3d printer. It's a planetary gear equivalent made with balls instead of gears. The two white rings are used to compress the balls against the central shaft ( The untreaded parto of an M4 bolt cut to length ). I used M2 hardware for that because I had it on hand and I wanted it to be as compact as possible, you can easily edit it to make it work with M3. The outside knob is connected to the central piece through a slot. All the parts need some careful sanding to get the correct fit, I recommend printing at 0.1 layer height.