Hello,
I’ve had the problem for just over a week that the black Bambu PLA Basic filament prints poorly. I assumed that it was due to the filament and that it might have gotten damp or something similar. The roll then ran out and I put in a new roll of the same Bambu PLA Black filament. The problems still exist. I don’t have this problem with other colors. Has anyone had similar experiences? Maybe something went wrong during the production of the filament in black? Or has some firmware or software update changed something that may only affect black? The problem is that he smears black in other colors and he also regularly loses short black pieces or threads when printing, which then fly around everywhere, as you can hopefully see in the pictures. You can’t see it really well in the photos, but there are actually black spots and streaks in every colorful layer. Bambu support says I should try turning the nozzle temperature down to 5 degrees, which I will try, but why should I have to do that when all other colors don’t have the problem and have never had any problems with the settings . I was interested to know if anyone else had these problems or if I was the only one. I would also be grateful for any other clever ideas. Best regards Andy
Hallo,
ich habe seit knapp über einer Woche das Problem, dass das schwarze Bambu PLA Basic Filament schlecht druckt. Ich bin davon ausgegangen dass es an dem Filament liegt und es evtl. feucht geworden ist oder ähnliches. Die Rolle ging dann aber leer und ich habe eine neue Rolle des selben Filament Bambu PLA Black eingelegt. Die Probleme bestehen weiterhin. Bei anderen Farben habe ich das Problem nciht.
Hat jemand ähnliche Erfahrungen gemacht?
Ist vielleicht etwas bei der Produktion des Filament in schwarz schief gelaufen? Oder hat irgendein Firmware oder Software Update etwas verändert was sich gegebenenfalls nur auf schwarz bezieht?
Das Problem ist, dass er in andere Farben schwarz rein schmiert und er auch beim drucken regelmäßig kurze schwarze Stücke oder Fäden verliert die dann überall rum fliegen, wie man es auf den Bildern hoffentlich erkennen kann. Man sieht es auf den Fotos nicht so richtig gut, aber eigentlich sind in jeder bunten Schicht schwarze Flecken und Schlieren.
Der Bambu Support sagt ich soll versuchen die Nozzle Temperatur 5 Grad runter zu stellen, was ich auch versuchen werde, aber warum sollte ich das tun müssen, wenn alle anderen Farben das Problem nicht haben und es bisher auch nie Probleme mit den Einstellungen hab.
Mich wurde interessieren ob noch jemand diese Probleme hat oder ob ich damit der Einzige bin.
I’ve had similar issues with Bambu basic black. Can you increase retraction on it?
Also, might check the nozzle to make sure it doesn’t have filament stuck to the outside. During purge the filament should flow straight out of the nozzle and not curl or twist as it comes out.
If it’s high time and not a hardened nozzle, some have reported nozzle wear that can cause print issues but not sure how likely that is.
Oh, that’s interesting that you have the same problems with black!
I checked the nozzle, cleaned it and also did a cold pull, so I would rule that out.
Can you tell me where exactly I set the retraction? In the filament settings or and the process settings? I’m not sure where to find the correct retraction setting and I assumed that it would be activated by default.
I have to say that I was just parroting a suggestion I saw someone else here make and haven’t actually changed the setting. I usually get good prints using stock settings but have seen that occasionally and saw other advice that fixed the user’s issues.
I think you are in the right place though and the top two settings are most likely. Mine are showing defaults of 0.8mm and 0.4mm with spiral z hop as the type when I enable them. I’d only change them by 0.1mm longer and try a print to see if any effect. If not or it is better but not fixed, increase some more. I don’t know what happens if you retract too much.
This looks right to me using the very helpful Bambu tool tips/flyouts but it might not be. Hopefully I’m not misleading you but I think those are the best candidates.
Did you manage to solve your problem? I wonder if i have a similar problem with the bambu black basic. this is my first printer, and i almost finished a spool of white pla basic, the results were incredible. But since i started this spool of black, it is not satisfactory at all.
The Bambu PLA that was reported as having issues was fairly easy to spot because the surface finish of the filament was really smooth and very shiny. The black and white basic PLA that has been ok has more of a satin finish at least in my experience.
I would start by drying the spool, even if it is freshly opened. 45C-50C for 8 hours should be enough to give you confidence that PLA is dry enough. THEN run the manual flow calibration from Bambu Studio to derive the k value.
The images seem to show the black filament has had some moisture absorption
i don’t have a filament dryer for my black should i get some I’ve had two roll of black the first didn’t work so i thought it was the roll but my second roll is not working either
If you don’t have a dryer, you can use your print bed as a heater.
Take a filament box and cut off the lid.
Poke some holes in bottom of the box.
Put your filament on your printer’s bed.
Put the box on top of the filament so it is covered.
Go to the settings menu > Maintenance > Maintenance Mode > enable.
Go back to the control screen and set the bed temperature to 50C.
Set a timer for 6-8 hours.
Hopefully your filament will be in better condition. Don’t forget to go back and turn off Maintenance Mode!
Hard to know. I assume you mean PLA? PLA is much more forgiving than other filaments for moisture and some people don’t need to dry it. And you can tune out some moisture effects but you are tuning a variable that can change from spool to spool.
My ambient humidity is high enough that I do need to dry my filaments. And filament can arrive from the factory with too much water to print well. The bags are semipermeable to water too. Opening a fresh spool is no guarantee of dry filament.
Unless your printer lives in a low humidity environment, it could be you are seeing the signs that say you might need to dry your filament too.
As Zenith noted you can use a heated bed to dry and that may get you dry enough to print (if water is the issue). Many dryers unfortunately don’t do great jobs but there are some out there that do. But first step is to see if it’s water. Driving off any water will start to reduce water effects if it is water. If you notice things getting better you’ll know you’re on the right track.
