I’ve had my X1 Carbon for 1 day. I’ve printed 2 items successfully with the PLA Basic that came with the printer, then a bunch of filament started sticking to the nozzle. From searching around someone recommended a cold pull; is this the correct approach? How do I prevent this from happening?
Bit more info, like a bunch … is it during print, or cleanup after, is it oosing too much after the prime line and bunching on the way the start of the print.
As its new and included PLA basic, I assume your using all the default Bambu PLA basic defaults in Studio? (so temps etc should be correct).
Is it lifting of the plate and thus bunching on the nozzle (so thus a bed adhesion issue?)
What plate? Cool Plate I assume? Use glue?
Yes, I am using all the default Bambu PLA basic defaults in Studio.
It happens during the print as it’s laying down filament. I’m afraid I didn’t notice more.
Yes, I’m using the cool plate and I did use glue. Maybe I’ll try putting glue on again. I’ll look more carefully when I print again.
Hi, still not sure what happened there, your description needs some expansion. Quite literally - can you answer the question above (“Is it lifting of the plate and thus bunching on the nozzle (so thus a bed adhesion issue?)”) explicitly with “yes” or “no”.
What @DruiD describes is that when your model doesn’t stick to the bed any more, it’s probably sticking to the nozzle, moving around. And, since more and more filament gets pumped into that model-sticking-to-the-nozzle, it turns into a big blob until you or the spaghetti detection stops the print.
There’s another, basically different case, where some of the filament from the nozzle is not deposited (fully) on the model, but keeps sticking to the nozzle. This could eventually be caused by something that’s being solved by a cold pull, but don’t bother - we’re not there yet, by a large margin.
Let’s work out the problem first. A photo would help, I suppose.
Do a purge above the bed and see what the filament does. If it drops, the bed is the issue. If it curls up and hits the nozzle, you have a clog. Did you recently print with glitter, wood or cf filled filaments? If so, a cold pull will help.
Also, I agree with the last post about cleaning the bed if it is the issue. Instead of a towel, use a paper towel. It wont have fabric softener on it.
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Its an X1C - so you have a good video \ timelapse etc.
Post that to a youtube or something for us, if not that a photo etc.
@StreetSports, that was actually the only time when I needed a cold pull - i had a bit of metal clogging the nozzle. Since the printer was new, and I had never printed with anything else than pure Bambu PLA, I assume that it was some debris from the extruder’s manufacturing.
However, let’s not jump to any conclusions until @lyonsfive has made clear what his or her actual problem is. Maybe it’s just as harmless as some excess filament beads sticking to the side of the nozzle, and at some time falling off and into the print.
@lyonsfive, the curling can also been seen at the preparation of the print, when the previous filament is pushed out into the poop chute. If it curls right at the tip of the nozzle, or exits sideways, you have a clog. If it drops straight down and then curls when it hits the bottom of the chute, that’s normal.
I tried the basics first - wash with dish soap and a light scrub, then lots of glue. That seemed to do the trick. I’m coming from the Prusa world and it didn’t seem to need as much glue as the Bambu. I also ordered the textured plate as someone recommended. Thanks for all the input.
@lyonsfive, great it solved your problem. Can you still let us know what your problem actually was?
So the “bunch of filament sticking to the nozzle” would actually be spaghetti failure, or the model itself sticking to the nozzle, due to not sticking to the bed?
With a little bit of feedback, you could make this thread helpful to others, and not just for you 
thanks @Haebaerle, great idea.
I went back to the basics; I washed the plate off, gently drying it off and getting all the glue off. I let it air dry for about 10 minutes, then put a light covering of glue on it. I think I am going to do this every 5 prints or so - what a difference it made!