I am trying to design a chain that should hold a mass against a cylindrical pipe(vertical). Each link has a wheel, thus the mass can be made to go around the pipe by manual force. My problem is that, each time the mass goes around the pipe and back to its initial position, its vertical position on the pipe has come down a little. I need to prevent this from happening. I am able to tighten the chain to reduce this problem a little, however I am not able to eliminate it.
The only way I can think to make this better is to tighten the tolerance between one link to the next.
Is there any thing I can do to make this chain better?
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