Matt's useless mechanism. Useless but fun.
Things needed to make it
-3D printer (of course! Why didn't I think of that.)
-4 ball-bearings(I used 624ZZ bearings but you could probably make most bearings fit with glue gun, a drill, modifying my files, or just no bearings.)
-A few nails for pins
-bit of glue
The frame was printed with supports. The holes for the bearings might need to be drilled out to fit the bearings in. And a bit of fiddling with it to make it work. or just scale it up to 102%. But defiantly worth it! (It can be addicting to play with) I have probably wasted over 3 hours just turning and watching it. The story of my life.
Enjoy and check out my YouTube channel. Make it Matt https://www.youtube.com/channel/UC873OURVczg_utAk8dXx_Uw