Ever since the firmware update and software update, I’ve not had 2 prints where the toolhead slams against the front left after printing. I’ve maybe printed 5 things. Seems like larger things doing it.
The print is at 99%, toolhead comes to front, slams against left side, slams against left side again, front cover falls off, it goes to purge area with error.
I dont have your problem but usually i do a full calibration after a firmware update.
I guess I did just update today, I’ll try that, tyvm!
Are you printing with AMS?
Slamming against the front left of the printer is how it cuts off filament before retracting it. You see it all the time when unloading filament as well.
Sorry but this action is not normal.
Unless he has lost some magnets on the front cover of the Hotend/Extruder.
Right, no magnets have moved. Checked that right away. I think a calibration has fixed it.
Spoke too soon, just got done with another higher Z print, got the error about the front falling off lol…
This time it just banged enough to trigger the sensor but the front cover didn’t actually fall off.
Happened again a little bit ago. Perhaps it’s not knocking it off every time and triggering the sensor. I’ve had it not fall off though AND trigger the sensor.
Already done one calibration so unless it’s losing XYZ coords between power off and power on? Is there a way to check the allowed XY on it? or Force of movement for the filament cut? I think that’s what it is doing…
Maybe it’s a worn cutter…
I’m suddenly having this same issue. I heard it from one room away. Knocked the cover off. Maybe the honeymoon is over lol. The only thing I’ve done differently is that I turned it off for a couple days waiting for filament to come in. Did it forget its homing? I ran a self test twice. One it failed and second attempt passed so I re started the print only to have it smash into left front wall again aaarrgg!
I had something similar happen today. Haven’t used the printer in a few months - upgraded from 1.0.5 to latest, and now a print that I’ve printed dozens of times before makes these screech noise for a moment (happens around the front right corner) about 5% in, which causes it to loose its position, causing it to slam into the right wall.
I uninstalled and reinstalled Bambu software and also did a factory reset on the machine…so far so good.
Saw an update to this, didn’t happen again after I upgraded firmware and reran calibration, so perhaps it was a user error in that I forgot to calibrate or such unless it really was the firmware but I kinda doubt it since it wasn’t every print.
Don’t know if this helps but I had this issue with my p1p after a software update and accidently found a solution when using the wrong slicing software and noticed that using the p1s slicer on the p1p printer solves the issue and still prints perfectly.
I just re-encountered this problem a second time and noticed my original solution wasn’t actually a solution and just kind of a coincidence. I did some observations while my printer was doing this and noticed that the toolhead hitting the front panel actually has a really simple solution: the toolhead does this because it calibrates incorrectly when starting a print, and it does this because the toolhead was not reaching the edges of the printer. The solution I found was that the PTFE tube I was using was not long enough, and pulled back on the toolhead when it tried to calibrate. Once I replaced the PTFE tube for a longer one, the issue ceased to exist.
I know this post is 2 years old but I also have the same issue. Crazy how this issue still persist. Mine did the same but more damage. It scratched my textured pei build plate.
Mine is doing the same thing - my last print was a 24 hour print - it printed successfully and with no issues and I was in the room at the start and end of the printing and the printhead was not banging against the door at all. Then I put my new print on and it banged against the door - i figured it was a one off, but it is doing it every time. I’ve calibrated and calibrated again, cleaned it and even done a factory reset. The plate is correct, I only use one plate and the files are the same files that I use week in and week out - so it’s not even a new file to blame. I did the software update ages ago, so there is no new software update that I have done over the past 24 hours. At my wits end of how to fix this now - especially as I had a tight print schedule to get final things printed for a show this weekend.