Hi everyone
Some time ago I had a warping problem with a 200 diameter piece, I thought it was also given by the size
Today after almost a month and a half I still had a problem but on a small 56x45 piece,
first print without brim did the problem on one side only
Second print with 7mm birm and zero space between object (also shot Texture Pei plate) did even worse
Material Pla matte bambu (never had problems for 3/4 of the reel), the last time it was PolyLite
I attach photos
Also even putting zero brim space I still have a slight gap, is this normal? (see photo from above)
Thanks in advance if anyone has ideas
1 Like
I had that all the time on my Ender 3 S1 Pro, never get it on my P1P or X1C, are you sure you have selected the correct plate in Bambu Studio?
On the P1P it doesn’t have the Lidar which scans the plate being used, so if you have it set for say the cool plate, then that could be the issue, it needs to be set for the textured PEI plate
HI
yes plate correctly set, I only have that one 
and it has always worked with other types of Pla as well
the first two months I never had this problem
1 Like
manually check the leveling and see if it needs to be trammed
Isn’t checking manually for leveling kinda miss the whole point of auto bed leveling?
If i wanted to manually level the machine i would have bought an ender for 1/3 the price.
Besides, how can one check the leveling manually to see if it needs to be trammed? the only thing i saw on bambulab’s wiki is how to tram the machine, not how to check if it needs one before tramming.
regarding this warp thing, i ordered my machine less than a month a go, i have this issue as well, my fear is that the PEI plate is just terrible! i ordered a PEO plate (smooth) to check it furthermore.
The gap you’re seeing between the model and the brim seems to be an issue. See this thread.
Randy
my gap between Brim and Object is set to zero
yes many complain that the pei plate is not suitable for PLA, but I have always printed only PLA and I have only PEI plate and until now the adhesion has always been perfect,
I am convinced that much of the warping problem is due to 100% infill, being full I assume that more material=more retraction
Some prints with 15-20% fill gave me no problems
now I also have this problem on another Polylite PLA pro matte filament, which always printed me well.
The first layer does not adhere in one point, I have already cleaned the plate, I have increased the plate and first layer temperature from 0.2 to 0.3
and even if I fixed the adhesion a bit, the upper layers are still ugly
Calibration of the manual flow by making the test print of the 22 mm cube, all perfect, walls 0.42
Does it still look under extruded?
is it also normal for the laser not to close/touch the central circle? it is the result after removing supports being a superior lager to the plate… (see photo with round)
Does anyone with a more technical eye have any other explanations?
Thank you guys
For starters, I’ve never had anything but problems with the Polylite brand. Cahnging parameters to fix one issue would make another issue come up. This was before my P1S. I quit using it and was much happier.
Second, the default bed temperatures for the PEI are too high in my opinion. It defaults to the temperature at which vitrification starts. Why? You got me. Seems having the bed set at that point where the plastic starts to change state is asking for problems. I had a couple of issues on even some small test prints when trying out Creality hyper. Dropping the Bed temperature from 55, to 52 helped a great deal, and going to 50 made them go away.
You can edit the bed temperature manually in the filament settings or drop the temp of vitrification.
There are other things that can be an issue, but I’d try the bed temperature first.
Oh, and keep in mind, if you are using an external spool, BS does NOT store the K value in the filament settings. You have to note the K value and change it to what ever value you calibrated the filament to when you switch filaments. Don’t have an AMS, so don’t know if that has the same issue.
ah… so the temperature to be lowered instead of raised? I read that these adherence problems were due to the pla cooling down too quickly, so I raised the temperature
do you mean the polylite settings inserted in bambuStudio are wrong? the first prints made some time ago had come out perfect for me
In what sense?
yes I only have external coils, in the case of the Polylite PLA profile pre-set in BambuStudio, I only checked the flow, which is set by default to 95% and is perfect for a 0.42 nozzle
however I also made changes for other filaments and saved the profile I find it in the BS list always with the changed parameters
without having to set them manually every time therefore
what filament do you use without problems apart from Bambu filaments?
eSun PLA HS- They provide their own profile for Bambu you can use, but I nhad to reduce outer wall speed by 15mm to get that profile to work well. I used the BL PLA tough settings and it printed well on that too.
Voxelabs PLA Pro. Uses the Bambu Lab PLA tough filament setting.
Creality Hyper is printing well but I need to do a little more calibration. I get an occasional string, and it’s oozing about 1/4 inch of filament after the print.
One more note- the warping can be caused by both too high of a temperature and too low of a temperature. have seen it both ways on an older printer that the adhesion was not as good on it’s plate as on the PEI plates.
Might be solved, I just got notified of the 1.7.2 release and one of the bug fixes regarding calibrations are as follows. From the release notes.
" 1. Fixed some Flow Dynamics Calibration issues caused by the calibration result not being correctly synchronized between Bambu Studio and Printer.
2. Display a failed result when found an abnormal value in Flow rate calibration.
3. Fixed the crash issue when saving calibration results by the Chinese name.
4. Refine kinds of translation and pictures on Calibration pages.
5. Improve lots of third-party profiles, these profiles are from @OrcaSlicer, thank SoftFever for these commits."
thank you for your experiences filaments
I’ll try
OK, it’s better this way
I still haven’t updated from the first version that has been installed since May on my P1P