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Human Shoulder Movement

Question asked by Uchenna Offor on Aug 22, 2018
Latest reply on Aug 22, 2018 by ömür tokman

Hello community,

 

I am trying to model a simple linkage group (made from aluminum) that mimics simple shoulder movement in one plane, as seen in the attached picture. But I want the rotating arm to be stable at any angle while rotating. Does anyone know the pin/fastener/whatever that allows for rotation? Also, am I correct in saying a tight tolerance between the fastener/pin and the arm will produce the stability while the arm rotates?

 

Something I can relate it to the real world are the legs of a tripod, when you collapse or open the legs. The legs rotate smoothly but are stiff/stable when rotating.

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