>         If the pulleys are fixed to a common shaft, they have to be the
same
> size.  Otherwise, any will work.

The pulleys *must* be able to rotate independently anyway.  If they are all
the same diameter than the rotation rates have to be different.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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