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Dear Charlie, Thanks for the note. I'd more than appreciate it if you could send me some pictures. However, I need to say that I need a rotation more than 360 degrees. The vacuum cups in the end of the system should be rotating even infinite. Btw, can you send pictures through eng-tips.com...

Thanks very much for the answers. I don't think it'll need large amonut of vacuum since the plastic body will be around 1 pound. I found out that those can pick a body up to 7 lbs. So that may be the solution. I also checked out rotary unions which is exactly what I was thinking :) In this...

Hey there! I need to design a mechanism that picks up a plastic spherical body and then rotates it over a desired angle. I'm thinking of a pneumatic system with a vacuum cup on the end of it to pick the body up and an electric motor to make the rotation. But the problem is that the angle of...