Hi all,
I'm such an addict.... Yesterday I came across theseball screws on Surplus Center and of course was unable to resist ordering a couple pairs, with the idea of probably doubling up the nuts on one screw to reduce backlash, and if necessary then using ball screw mapping in Mach3 to compensate for lead errors. But all that does require a certain level of quality from the units to start with...
Anybody check these out yet? Of course, the ends will have to be machined and Yadda Yadda Yadda ... But who can resist $15 for a pair of ball screws?