Hot End Gooing Up With PETG
It seems whenever I print PETG the hot slowly goos up, especially on the first layer. I think it has cost me a couple of prints in a bad way. The last print had a good amount of material on the hot end, but didn't cause an issue. I've also been know to pause the print and pull it off with pliers. Does anyone have any idea what may be causing this? Does it need a new nozzle?
Thank you
RE: Hot End Gooing Up With PETG
Before replacing the nozzle try first drying the filament. PETG isn't exactly a friendly customer if it's wet. As you see, it likes sticking to the nozzle, dropping blobs and zits everywhere and all kind of trouble, Of course, some brands of PETG filaments are worse than others in this regard. You should tell us the model of printer and the brand/color of this filament. That will help us to diagnose the problem.
BTW is it a regular nozzle or a HF one ?
RE: Hot End Gooing Up With PETG
I have tried drying it to no avail, but it still happens straight out of the dryer. Believe it or not it is my original nozzle that came with my Mk3, before I upgraded it to Mk3.5. It doesn't have a ton of hours, but it is by no means new. I have no issues with PLA and my X1C doesn't have this issue with the same spool.
RE:
If I were you, I'd change the nozzle. The one that you're using must be well past prime by now. Anyway, with PETG is very important to have a spot-on Z-offset on the first layer and a perfectly clean bed. If Z it's too high, with PLA you still can manage more or less well, but PETG is merciless, even dry. It tends to stick to the tip of the nozzle instead of the printing plate, specially if the bed isn't clean enough, and this is where the trouble starts. Which brand/color of PETG are we talking about ?.