Quote:
Originally Posted by Oblarg
We used to use thick surgical tubing for the coupling, but found that this actually causes a fair amount of noise in the encoder reading (my best guess is that the torsional flex in such a coupling leads to something like a stick-slip behavior, but I have no way of actually testing this). We now use helical beam couplers instead.
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We found the same on our elevator in 2015, switched to 1000psi 1/4" fuel line and the problem was resolved. (available in all auto stores for a couple bucks a foot, max.)