My P1S is new, got it 10 days ago, has printed 85 hours.
Today the head crashed into the bed. Making a lot of noise… during the print of the prime line… right before starting.
Right before I cancelled the print because the first layer seem off. Lines where not properly squeezed on the bed.
It looks to me like bed leveling is failing… or the printer does not know where the bed is exactly, and that would explain both issues.
Have you put it through the long calibration?
when I installed it 10 days ago… or?
I mean, is part of the standard installation wizard, right?
could this be the issue? manual leveling reqruied?
everything printed just fine, I think. I only had some trouble with prusament ASA getting off the bed, but that would be normal I think first layer was OK.
It hits the front or rear frame? Sometimes it can whack that lever in the purge chute pretty hard
Some of the other folks can probably elaborate on this because I’m just a couple of months into Bambu Lab printing.
I was referring to the one you do from touchpad that warns you it may take best part of 30 minutes to complete.
Run it and see if it stops during calibration beyond the normal pauses during that 30 minute calibration.
I run that auto calibration any time I fiddle with the printer.
I have not had to do any manual bed leveling/tramming and I suspect auto calibration will tell you if manual leveling is required.
These printers are pretty good and even in my short experience here I’ve seen folks dive into these printers not because they needed to but because they’ve had to do so with their prior printers
I did the full calibrarion, and attempted the print again, and it crashed exactly at the same place.
At least this time I got it on video.
As a last test I also attempted to print another file that worked just fine this morning (in case the issue is in the gcode) and it happened too.
So there is something in the printer…
I am also very surprised that there seem to be no crash detection at all…
Save that video and file a ticket with support.
My first P1S wanted to hit the rear wall. Gave a totally spurious fault and in the end Bambu Lab sent me a new one and I sent the old one back in the box the new came in.
Hope you saved the old boxx and packing stuff. It makes the return quicker if that is what it comes too.
New one runs like a champ.
I found the issue.
First some people suggested that the crash is not against the BED but towards the camera, the head comes forward, can be appreciated in the video.
Support suggested reviewing the filament buffer… I did not consider the feeding as an issue, then I realized that I had installed the following part:
With the printer off, I started moving the head around and indeed, a combination of a slightly longer PTFE tube and this part create the possibility of mechanical interference with the printer case, at that particular point.
Removing the part for a test and the issue was gone.
Yup, those PTFE guides have caused other users similar problems.
If you did that part in response to seeing the chain, cable, tubing rubbing on the glass you might consider printing a riser that elevates the top glass plate some.
I was at the point of putting a guide like you are talking about but I wanted to get more lighting so chose a riser instead. With the riser I was able to put LED strip around the circumference of the riser.
There are tons of them out there. I opted for one with no vents as some filaments don’t take kindly to air currents. Really no differences other than adding an inch to the top.
I installed the part because my AMS fails to load filament into the extruder after I installed the Y splitter… I noticed that the curve right before the extruder impacted the success rate, so I printed the part… and indeed filament loading started working fine.
Yes, I want a raiser too… I need to be able to control ventilation, my printer is in a storage will get too cloud and too hot at different parts of the year… so, it will be handy. And yes, better lighting is a nice, thou I can see most of what I need with the provided camera and light… so, it is not too urgent.
Currently I leave the door open for ventilation.
I would caution about making mods because the way I read your description, you made the Y-Splitter for printing materials that are not AMS friendly, which it then caused an extruder problem.
You can buy inline PTFE couplers that would allow you to release the PTFE tubing from the AMS and feed your filament from the manual spool holder.
There is a list of mods that Bambu Lab recommends NOT doing and I expect that is based on the number of support tickets those mods have generated by users.
Mods to Avoid
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