Yes, you need to make sure the leadscrew is against the bearing, not floating. You do want the slide to be loose enough that gravity takes up the backlash in the nut though.
Originally Posted by
Smertrios
Origionally I assumed that z-axis backlash on my TAIG mill was at the nut. I took the head assembly apart and realized this was not true! The Z-axis endplate (red square in the pic) was not "tight" to the screw assembly which left .011 backlash on the Z. I took the nut off the screw assembly (red circle in the pic) and lightly tapped down a few times with a hammer and re-tightened the nut. Probably a no-brainer to alot of you but this was a source for many problems to me.
Nick Carter
Largest resource on the web about Taig lathes and mills
www.cartertools.com