I have an early shopbot (5/97 - don't know what
serial number, as it doesn't have one) with
cable drive and a parallelization cable. Since
I'm not really making money with it at present
I'm not going for the R&P option, but I am going
to retrofit to the no parallelization cable drive.

I've finally found a source for drive cable (MSC
Industrial Supply, 17 cents a foot), but they
offer both nylon and vinyl coatings, and I wonder
which would be the better choice. The catalog
blurb implies that the nylon is better so long
as it's out of the sun, but it's possible the
vinyl would give more traction on the drive
sheaves than the nylon.

Any experience or thoughts on this?