I'm designing the slide for my ATC. I had planned on using two 20mm linear rods however for this application I'm wondering if I could get away with some 3/4" Polished Rod and run 4 carriers with bronze bushings.

The setup will be sort of like Tormach's with a small air cylinder sliding it back and forth with a positive stop on the spindle end. Total Rod length 18" with a 6" wide carriage for 12" of travel.

Opinions?

RIchard