Re: Do rings rotate?
Years ago, I asked this same question and came to the conclusion that ,no, they didn't rotate. What would drive the rotation? would it be CW or CCW would the upper ring rotate CW while the lower ring rotated CCW? Would one ring rotate faster than the others? Wouldn't the cross hatch prevent it? Until the cylinder wore ever slowly out of round? Once the cylinder is out of round, the rings couldn't possibly rotate.
Terry
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