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Bob Houston posted an update 7 years ago
I resigned the Top Stomach so now it can lean Forward and Backwards. The design is a ball joint with 3 servos. It still needs some work but the concept is good.
Mmmh I had written a comment a few hours ago, but I guess it just disappeared. Awesome work Bob!!!!!! This is really adding a cool feature!! When I was designing the stomach parts I wanted set in a 3d printed “rotule de cardan” (I don’t know how it’s called in English http://motopieces.fr/wp-content/uploads/2014/03/rotule-de-cardan-624×468.jpg) to…[Read more]
Thanks for your comments, Gael. Over here we call that type of joint a U-Joint. I considered that type of joint for this modification but the ball joint is much simpler. I left the pots in the servos and used my modified pistons that I made earlier for the Top Stomach. The reason I am experimenting with this is, that for walking I think the robot…[Read more]
very good idea use this articulation bob i think to use the same idea for ankle was the best
Thanks Bob for the name “U-joint”, I couldn’t grab it on internet. You are totally correct concerning good stomach movements for to be able to have human gait ressemblance.
The parts for this modification are on Thingiverse. http://www.thingiverse.com/thing:1409964