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Why does this assembly fail when I add one more revolute mate?
dasula_nilanjith
Member Posts: 2 ✭
This is a robot arm design I created based on a reference design I found online. However, when I try to connect any two of these blue-colored parts using revolute mates, one of the joints (circled in orange) fails to work properly. They move in a different way, losing the revolute mate-connecting the joint…
Does anyone have an idea why this happens or how I can fix it?
Thank you… I’m still learning and would really appreciate any guidance!
https://cad.onshape.com/documents/42332c986bd06c2f97175de5/w/e243344c5da92a04bde15132/e/fc6f6a86cbdb797a2d70893e?renderMode=0&uiState=690f4fc7c74d15bfb6e2f60d
Answers
I would probably change how you approach mates a little. Let the bolts be the last thing you mate. connect the holes to each other first so that you can easier troubleshoot where the problem may lie.
The revolutes are likely "fighting" each other in the "Z" direction.
Change some of your revolutes to cylindrical to fix the issue