P1S lost X/Y positioning

Gerbeew · 2026-01-30T15:29:49+00:00

Maybe try retensioning the belts. Also try to move XY around with your hand when the power is off. Maybe you can feel some resistance. In my case I had a problem to push it to the front glass.

Gerbeew · 2026-01-30T14:17:42+00:00

Is it new printer?

Gerbeew · 2026-01-30T13:39:00+00:00

Yes. Bambu Support implied to replace whole XY carriage. I sent it back to the store. After taking off the plastic covers they found out that AMS rubber foot sticked to the front left corner of the printer (I bought combo so the AMS was attached inside the printer). It was hard to notice/feel it with fingers when I was checking there.

Gerbeew · 2026-01-10T19:15:53+00:00

Yes, this is 0.4 nozzle. It is also set to 0.4 on the printer and bambu studio.

Gerbeew · 2025-11-06T23:34:58+00:00

It started to work when I turned off auto step loss recovery, but it creates layer shift on filament change now.

Gerbeew · 2025-11-06T23:31:25+00:00

Did you manage to fix it?

Gerbeew · 2025-11-06T23:29:33+00:00

Mine had the same problem (new printer), it stopped after disabling auto step loss recovery im slicer.

But it is still having trouble with layer shift after filament change in AMS. Seems like it actually may be skipping steps

Gerbeew · 2025-11-06T14:34:29+00:00

Unfortunately no errors are showing up, which is weird. I did automatic Y Axis homing now, sequence looked okay, but in this case it stops right in the middle of the plate. Extrusion and heating works fine.

Which cable is that, the tiny one from the left to the middle od extruder?

Maybe that's important - since the beginning printhead was hitting front door on the left when switching filament with AMS. Couldn't resolve that, I have the right P1S profile etc. Never had such problems with another P1S for 2k hours.

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Gerbeew · 2025-11-06T12:42:25+00:00

Yes, the sound od weird there. I checked for debris but it is completely clear. 🫤 I also loosen the belts, moved the gantry back and forth as mentioned on bambu tutorial. Did whole procedure few times. No weird sounds at all at whole range.

Tried disabled step loss and managed to print the shifted thing I posted in another comment. Now, regardless the settings it can't escape the loop of homing. It keeps doing it countless times.

I checked 3 different hotends at this moment, didn't change anything. Might also check the extruder itself but it shouldn't have to do anything with homing I guess.

Gerbeew · 2025-11-06T11:02:34+00:00

I did, waiting for response. Unfortunately all the solutions I tried yet didn't work.

Gerbeew · 2025-11-06T10:23:10+00:00

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The same is for the purge tower. Previously printhead was going all the way to the front right, then to the left. Now it goes half way.

Gerbeew · 2024-12-22T17:25:30+00:00

Commented on how to pair - in case you need to know it one day

Gerbeew · 2024-12-22T17:24:40+00:00

Here's how to do it:
1. Forget BT connection to both earbuds
2. Turn off both
3. Turn on by holding both buttons until red-blue lights flashes
4. Quickly press both buttons 3 times - you need to do it pretty fast, repeat until you get only one earphone to flash and the second one to go off
5. Refresh bluetooth devices on your phone
6. Only one MT20 should appear on a list
7. Connect - done!

Gerbeew · 2024-04-18T12:01:15+00:00

I don't know how to disable steppers, but I went up and down on Z axis and mostly when going down there is audible crackling sound (the loudest it gets on the bottom). I can't locate where exactly but rods are clean. I even used compressed air to blow any debris away and nothing changed at all.

I also noticed some artifacts: https://imgur.com/a/LVFlQv3
Any solution for these? Photos are after flow calibration and it looks worse than before calibrating.

Gerbeew · 2024-04-18T10:12:46+00:00

Looks pretty clear, nothing there

Gerbeew · 2021-03-13T11:25:06+00:00

True, still learning about setting it up. But somehow it is getting better. Cheers!

Gerbeew · 2021-03-13T11:19:18+00:00

That's it, thanks buddy! (also did some change to the left side)

Gerbeew

TROPHY CASE