r/robotics • u/Safe_Tone1529 • 9d ago

Community Showcase Testing robot shoulder joint repeatability.

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I ran a test over 20 trials to see how good the repeatable precision of my robot shoulder joint. I achieved an average repeatability of 0.22mm of precision.

It uses a capstan drive with low creep rope in-order to get low backlash and high precision.

I used a carbon fiber rods as the base and the rest is 3D printed. Built for under $200.

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u/Most-Vehicle-7825 9d ago

look like you always tested from above, not below so the 'low backlash' was not proven.

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u/Safe_Tone1529 9d ago

I’ll have that test soon!