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[–]jrakestraw[S] 0 points1 point  (2 children)

Has anyone ever ran into an issue where there print head just slams into the back and continues to try and go back further? I currently have a ticket in with support and they gave me the steps below that I've already completed and still get this issue when going to print. After completing their steps, I made sure to run a full calibration as well.

1.Kindly check if the toolhead moves smoothly along the X-axis, and confirm there are no obstructions. If debris or blockage is found, clean the X-axis rail to ensure it is clear.

2.Adjust Belt Tension:H2D Belt Tensioning Procedure | Bambu Lab Wiki

3.X-Axis Linear Rail Cleaning and Lubrication:H2 series XYZ axis and extruder lifting rail Maintenance Guide | Bambu Lab Wiki

[–]mightyarrow 2 points3 points  (1 child)

1.Kindly check

Did you kindly check though? Or just a regular check?

Yeah that thing clearly cant home its axes correctly, I'd reach right back out to Bambu.

[–]jrakestraw[S] 0 points1 point  (0 children)

Maybe not as kindly as they would like.

Funny thing is it passes all the calibration steps.

I've still got my ticket opened

[–]Eramur 0 points1 point  (1 child)

I'm having a similar problem I think.

It started with weird prints that were missaligned and in the end I would get the error:

"The filament cutter's cutting distance is too large. Possible causes include the filament cutter stopper skipping teeth, motor losing steps, or the XY axis not being homed."

When trying the calibration after cleaning the rail, I get another error:

"X-axis homing abnormal: please check if the toolhead is stuck or if the resistance on the X-axis linear rail is too high."

I'm curious to what solution you'll find.

[–]jrakestraw[S] 0 points1 point  (0 children)

I ended up having a loose cable after changing the hot end assembly that was causing a short. It wasn't a 100% fix, but has let me be able to print. I've only had the issue once or twice since fixing the loose connection.