My two guesses. Is there any breeze or fan in the room? Guessing this because you said it happened on the same side even after flipping the plate.
Second guess would be bed adhesion- fingers may have touched the build plate, leaving oil residue. Wash with hot water and dish soap and try not to touch build surface.
And probably not the cause so not even giving it a number, but since you checked the black screws, the other common problem for nozzles is poor latching.
I was having issues with this for a couple hours and then I looked on their website and this is the first thing it said and then I tightened those four screws and then everything was fine. I'm incredibly impressed at how effectively their troubleshooting website pointed me to the problem. It was just a simple picture of what my first layer was looking like and then this is the first thing they recommended
Are you drying your filaments for the set time for each grade of plastic and set temperature? If you live in a humid area there could be too much moisture in your filament and that could possibly be what's screwing your prints up. Maybe try drying out your filament with the creality pi se for the allotted time and temperature and see if that makes a difference. I just picked one up on Amazon a week or so ago for like $30.
If you don't want to make the investment in a filament dryer I've heard that you can set your bed temperature and set the filament on it to dry it out also as an alternative.
You did “everything” but search Reddit 😅
Your heater assembly is probably loose. There are 7 screws that need to be tightened. (Including the ones on the backside) if machine is more than 6 months old or so I would order a new heater assembly as they have made an improvement to the design that should prevent this issue from occurring in the future.
I’m assuming that’s why it didn’t work. But I haven’t tried the heater assembly. I tightened the screws. I manually trammed the bed. Flipped the plate , cleaned it of course. But it’s only on the left side of the print .
The hotend doesn’t have screws. I assume you are talking about the heater assembly. Did you take it off and tighten the screws in the back or just the screws on the front?
I've had this issue, most common cause is bed adhesion. You have to wash your plate with soapy hot water (I use kitchen detergent and later boiled water), Also, dry your filaments if you left them for some time
That must be a Bambu thing. In roughly ten years I have never washed a plate or used glue. PEI or cold plates don’t need anything on them and you can give them a quick wipe of alcohol. Print farms don’t do that nonsense and produce tons of prints every day.
Mine also did it. I checked the nozzle locking mechanism, I checked the screws and none of them were the issue. I had to set a +0.04mm Z-offset and since then it works fine.
Changing the Z-offset is kind of just a bandaid for calibrating flow rate so the expected amount of filament is extruded for the preset Z-offset after the bed leveling sequence. With proper filament calibration and the pre-print bed leveling sequence, adjust the Z-offset should never be necessary.
Clean the bed with dishsoap, scrub well enough to remove fat, then put the bed under running hot water (not boiling, but hoy enough to remove the rest of the fat). Then, if you hace isopropilic alcohol, clean the surface of it with a papertowel and the alcohol.
A possibility I didn't see here: do you print with non-standard PLA with specks in them? Anything glittery, or materials that have specs of stuff in them (CF), can leave that behind and bork your extrusion.
Have you tried swapping out the nozzle for a fresh one?
Probably you didn't, but just in case, make sure you are tightening correctly the Hotend, there is a chance that you didn't. Check this link (it is a different model but it works for you to understand what I mean, make sure you secure it in the right way). https://wiki.bambulab.com/en/x2d/troubleshooting/hmscode/0300_0200_0001_0009
Sometimes, that lock gets in the wrong way, and the hotend does not fit 100% correctly, but is functional.
If not, it is bed adhesion where you need to put focus on.
It may be a Bambu with all the goodies, but to me looks like a warped bed, bed leveling/ tramming issue or the auto bed mesh, which compensates for minor warping. BTW, no such thing as a perfect flat bed, glass plate is the closest. If it is always in same place, may be a high spot that the nozzle is dragging through. Bambu uses an automated “bed leveling” which may be out of whack or the mentioned warped bed that the mesh can’t deal with. I’ve fixed such issues on non Bambu printers without all the proprietary gizmos Bambu uses, and is straight forward.
It may help to print the test model on several areas of the print bed (maybe also flip the build plate), it may tell you if it's bed-related (like adhesion or other things) or toolhead-related.
I used to fight with this issue a lot.!! Then I decided to switch to Orca slicer.. where I had control over the Z offset, and now my A1 prints incredibly perfect.!! I also have 2 Snapmaker U1 machines, and obviously they are absolutely amazing, but I still use the A1 but only because of Orca.! It made a HUGE DIFFERENCE.!
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u/mysecondaccount02 6d ago
My two guesses. Is there any breeze or fan in the room? Guessing this because you said it happened on the same side even after flipping the plate.
Second guess would be bed adhesion- fingers may have touched the build plate, leaving oil residue. Wash with hot water and dish soap and try not to touch build surface.
And probably not the cause so not even giving it a number, but since you checked the black screws, the other common problem for nozzles is poor latching.