I have a X3 with the Deluxe Kit. 425 Oz and a 640 oz on the Z. Running Geck0 203's at 54v. I am getting 120 IPM Rapid on all axis. I know I will not cut that fast.

My problem is on my X axis I have .030 backlash. It appears to be coming from the coupler between the stepper and ballscrew. As if the rubber insert in the couple is undersized. Any one have this problem or suggest a fix?

On my Y axis I have about .004 backlash. I was hoping for better, I am think it could be from the coupler too, but have not checked it.

I cut a 1" square and it came out .972 and .976 so sounds like we are off a little.

Advice?