Delrin is more appropriate for use with an ACME screw. The cross-slide screw on our 7x lathes looks more akin to a standard screw thread. My "solution" for getting rid of slop from the compound slide/screw was to do away with it. Granted, this may not be an acceptable solution for everyone, but it was for me. I replaced it with a solid piece of steel, and it's proven to be very stable. You can see pics of it in my "7x10 Project Started" thread. Other than that, my cross slide has very minimal, if any, backlash at all. I was comfortable enough with it's tolerance to use it as-is on a CNC conversion. A ballscrew conversion would be nice, but small size ballscrews are very expensive on Roton's website. |