[kawazuki]

The bronze bush at the column end of the saddle - is that something you've added as i've never see it before and in all honesty its not required for screw support and with the tolerances on these machines could lead to binding between screw and nut! That may be stopping the screw pushing fully back......it's been a while since mine was apart so can't remember what that end looked like!

[Sockles]

The bronze bush at the column end of the saddle - is that something you've added as i've never see it before and in all honesty its not required for screw support and with the tolerances on these machines could lead to binding between screw and nut! That may be stopping the screw pushing fully back......it's been a while since mine was apart so can't remember what that end looked like!

It's not a bushing, it's actually a washer at the end of the ballscrew held in place with a retaining ring, to stop the ballnut from sliding off the end. It's hitting up against the back of the frame.

I'll just make a spacer, shouldn't be too hard. Already got X & Z axes mounted. Should be good by tonight.