X axis will not move

[CharlieMike]

So I understand, the X axis binds and won’t move left or right? The stepper motor will try to turn but it will just make a annoying grind/humming sound?

If that is the case - I had the same issue.

What worked for me was this:

SLB Issues: Endstop Buttons, Homing, and X-Axis stalling

That amount of variation should be tolerable Jon. You mention that your motion is the most impacted when close to home, to me this would point to your X-axis anti-backlash nut perhaps not being fully aligned that it’s causing more noticeable friction as it nears the left bearing. What I’d recommend for that is to loosen the two M5 bolts, and then slowly alternate on tightening them when your machine is positioned right next to the left bearing to ensure they’re as aligned as they can be. Let me …

I moved the XZ gantry all the way to the left. I loosened the two bolts on the X axis anti backlash nut. I jogged it a little back and forth (maybe an inch or two) then just gently alternated tightening each bolt down. Barely tightening them. Just compressing the lock washers and that’s all.

This has also helped people with a similar issue:

SLB Issues: Endstop Buttons, Homing, and X-Axis stalling

@DaveR66 if that’s the case, change your X-axis acceleration value ($120) back to 750 instead of the SLBs default value of 1000 and let me know if that resolves your issue. I haven’t seen any tickets on this issue but I’ll conservatively put the count at 4 in case 2 other people have been missed and see how the results continue to emerge from there If the fix works for you then I’ll discuss with the team to either add to the docs or do more from there

Good luck!