Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!


by gineer Mar 21, 2014
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Excellent work!

Just wanted to know if the "ball joint with cable drive" works in practice?

Is it sturdy? What kind of challenges did you see?

I was designing a similar joint when I came across this, and thought I would pick your brain to save some time.


Hi garlopf,
I have not yet printed this design. From my 3D printing experience though, I think the main thing that would stop this from working would be the smoothness of the joint. So this would mean significant post production, alternatively, if you could somehow replace the joint with a metal ball bearing of some kind it might do even better.

If you do get around to printing this, please do share your results.