14
Showerthought: I read that a worn ball screw can cause a 0.0005 inch positional error on a VMC.
Found it in an old Haas maintenance manual I was flipping through at the shop. Has anyone else caught a weird tolerance issue that traced back to something simple like that?
3 comments
Log in to join the discussion
Log In3 Comments
jesse_west3mo ago
Our old Bridgeport had .003 from a loose Y-axis nut.
5
avery_foster3127d ago
Wait, you're saying a loose nut made that much of a difference on the backlash? I used to blame the gibs or the leadscrew for everything, but your post made me reconsider how much a simple loose nut can throw things off.
2