Quote:
Originally Posted by tnott
Thanks for your suggestions guys but I have done some further investigation and the roller-coupled-to-encoders option has been tried before and failed because it proved impossible to avoid some slippage.
I'll try another tack.
Tim
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I am using roller couplers for encoders and there is no slippage.. at least no significant one that can be noticed. Of course, this will depend on applied pressure as well.
My rollers are spring-loaded and the surface is slightly serrated (in irregular fashion, like a grit-wheel used on large plotters for paper transport), so the slippage is reduced even more.
The alternative coupling method would be a timing belt....