[dertsap]

i looked up the cable drive shopbot and they had some complaints about having to tweak every so often but it looked to me that the cable was inferior and I would imagine that a lot of the inaccuracies were due to the patio door rollers that they used on the original designs
I'm quite optimistic in it working well , the guitar on acid does sound like a potential issue
because the drivers being used for that particular setup do cause the motors to sound a bit ugly , but if its only noise then the router cutting will drown that out quickly .

this is a project and more or less a mod for my kids machine or a complete new build , something to keep me and the boy outa trouble