I understand this was a few years ago but a simple fix to your problem if you need it in the future is to loosen and remove the screw on the back of the feeder. It untightens the feeder and allows you to pull the filament freely. I hope this helps someone in the mere future.

@pverdin said in X-axis belt adjustment:

Just a learning moment to share:
Noticed my X-axis belt was sagging so before starting a new print tightened it up as per instructions. Went to print my next piece and it's now it won't print properly, half of the bed has no filament and then a "blob" and then prints.
Leveled the bed and better but still crappy, re-ran the Z calibration followed by another bed level routine, a final tweak of the Z axis and back in business.
Rookie mistake thinking adjust one axis wouldn't throw out anything else.
Live and learn!

Wow, that's quite a learning journey you went through! It's interesting how adjusting one axis can have an impact on other aspects of the print. It's great that you were able to identify and address the issues by leveling the bed, recalibrating the Z axis, and making the necessary tweaks. Learning from these experiences is what makes us better at what we do. Keep up the fantastic work and happy printing!

Any luck with this? I have the exact same issue

@williamlynn Please send us an email @ support@matterhackers.com

@brucegage I have had this problem on every slicer and for me it has to do with the z steppers and layer heights. Not all layer heights print the same. I had a 0.33 and 0.35 fail, but the 0.34 printed perfectly.

Also, just for fun, check your x-axis belt tension and the pulley set screw on the stepper.

I have active licensing for most of the slicer programs available to work with.

@jomiscli check to make sure the leads are still connected to your microswitch and to the board. If one of the leads is loose or no longer connected, this will be the result.

Oops! Wrong printer.

Pulse XE E-423
MatterControl 64bit version 2.22.04.11471
Windows 11

Are you measuring from the first couple feet of the spool or did you find this in the middle/end of the spool?

If it's right at the beginning, that makes some sense. You technically get a bit more than 1kg, and the last bit of the spool (which is the first filament you unwind) can have some irregularities.

I found it. Probe Offset in MatterControl is NOT the same as running M851. To elaborate:

In MatterControl,

is not the same as

Ran

->M851 Z-1

in the terminal and was able to run Z-Calibration and Print Level with probe.

Was this on a delta printer?

If so, home your printer. Then, release the motor tension and move the head down so that the nozzle is touching the build plate in the center of the bed. Go to the LCD and set Z=0. Then Re-home the machine and run the leveling again. Should be back to normal.

This might help, Pulse XE Printer:

Brown appears to be Z-Max power which would explain your Z-Axis issues. However you said your Z-Max was filled so this may not help.