Harmonic pin-ring drive

[david merten]

I saw this on hackaday a few days ago. I printed it in natural pctg. The parts look great. I went a little overboard with 50% infill, but the pattern looks cool. I need to print the middle ring in a different color, to show the motion better. 

        David

P.S. microcenter has dropped the price of the carbon to $299. I am going to get a couple more. 1 for grandkids, they wore out their super-racer. And 1 more for me.  I am going to put a .8 nozzle in it.

[david merten]

Forgot the link if anyone interested. 

          David

https://hackaday.com/2026/03/11/3d-printing-a-harmonic-pin-ring-gearing-drive/