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by clairity 2527 days ago
yup, as part of a research project way back in college, we even made crude artificial muscles out of mesh wire sheathing[0] and custom-formed long, thin rubber "balloons" actuated using compressed air. the efficiency was horrible, but we were primarily interested in the gait dynamics of our robot, not efficiency. it was a fast little bugger though!

[0] something like this: https://www.donathenrc.com/mesh-sheathing