Quote:
Originally Posted by wireties
We see your point about the tolerances. If we have -.008 on both surfaces, that gets sloppy pretty quickly. And it seems our keys/slots tolerances are contributing the overall slop as well. Adding in the chain tension slop, it is enough to drive the encoders nuts now and then. We have to filter it out.
Thanks!
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This is a good solid engineering principle. Tolerance errors can add up.
We put hubs from AndyMark onto 8" - Mecanum wheels and they still have slop, but not as much as with chain drive. Also, I have found that after you run the tough boxes for while they tend to mesh a little better and run quieter but the slop remains.
It very important to assemble the tough boxes correctly. There is a star lock washer that holds the little gear in place. Without that the toughboxes will eventually rattle apart inside. Our team forget this washer in ALL 4-toughboxes so we got to assemble/reassemble them multiple times.
