I made it out of straws, which I ran a wire through.
I hade to put three straws together every time to get a kind of "hinge" but now it's working fine.
I have learned a lot from making this model. Especially that I don't think I'll make my final model's legs out of pipes..
The joints are the problem. My father is trying to find a solution. I'm exploring other possibilities.
For the physics models it's easy to test with sticks. But for my next models I get 'skins' on the sticks to mimic the muscle model of prototype #9 (the youtube movie I posted earlier).
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