X1 Carbon Moves in the Z-axis when moving in the X-axis

Bambu Lab X1 Series Troubleshooting
1

Hello!

I was made aware of a new error this morning after my machine severely crashed.

It seems that when my machine moves in the X-axis either way, it also causes the Z-axis to usually mildly but sometimes erratically move up and down as well.

This causes prints to usually get knocked off the bed or not adhere within the first 20 layers in a best case, but in the worst case the machine raises the bed during initial calibration causing my nozzle to grind across the bed, damaging it.

Background information:

  • I only print using an SD card
  • No network access
  • Version 1.00.00.52
  • Bentobox installed via direct wiring
  • Printer is about 10 months old with regular use
  • Stock everything else, original hot-end assembly still installed
  • Have had minor problems in the past requiring me to disassemble the hot-end to clear jams
  • Regularly calibrate, and have already run the built-in diagnostics

I took a video of this happening, if anyone thinks it’s necessary I can upload it to youtube or something.

2

A problem with bed leveling could cause what you are describing. The axis are not physically linked so it has to be something control board side causing it.

4 Likes
3

I’d start by getting online long enough for a firmware update, then restore the factory settings. There have been a lot of fixes and additions in the last ten or so revisions. I can understand not wanting to print through the cloud, but there is no other way to update the firmware. Your version is not even in the release history.

4

Do you have “Z Hop” turned on?

1 Like
5

This “linked movement” is actually happening even when I’m jogging the machine manually, so I’m not sure it’s anything coming from the slicer or bed leveling.

When in doubt I guess! It has been working fine until today and I’m not a big features guy or anything, I was worried about updates bringing in issues that I didn’t have. I’ll do this today.

6

Something’s seriously busted. No way that should happen. Steppers don’t step on their own. Is it really Z axis movement (can you see the screws turn?) vs. maybe something that’s mechanically induced?

1 Like
7

Here’s that video for you:

You can see it varies in how much it moves. I’ve actually cut power to the machine and started another print as I have something that needs to be completed by this afternoon and it seems to be doing well, but cutting power before did not solve the problem. Very erratic!

8

You can see in the video, it’s a bit strange but it’s definitely moving together for whatever reason!

9

Do the same movements from the slicer and see if you can duplicate it. If you can’t, its likely just the touchscreen or something in the touch movement chain.

10

This almost looks like if there was an electrical connection between the motors, either that or electrical fault somewhere on the board. How did it crash before?
In any case, I would start by updating the firmware…

1 Like
11

I’m running a print right now and so far so good, though it did fail around layer 20 again on the print I started when I uploaded my video.

I will update the printer tonight and return to this thread!

12

Solution was to update it seems!

So many new settings on there now.

Print is now going fine after updating, sorry to take up a topic with such a weird issue if it was solvable so easily.

2 Likes
13

No waste here! This was a good learning experience for me and others I’m sure.

2 Likes
14

Do a manual bed level (tramming). Instructions are in the Wiki

15

Thanks! I resolved this issue above by updating and resetting my printer settings.

Seems the bed level is still suitable as I’ve been successfully printing since this topic was marked as solved.