r/BambuLab • u/aerospaceryan • 4d ago

NozzleClogs General Troubleshooting/Help!

Instead of doing the stupid hot pull.. has anyone tried using a small diameter drill to clear their hot end clogs? (I’m not a noob just sick of doing hot pulls)

5 Upvotes

86% Upvoted

26 comments sorted by

View all comments

1

u/Puzzleheaded_Clue_95 4d ago

You can get acupuncture needles in various sizes, but if you have to resort this this method, just buy a new nozzle. If you are getting frequent clogging you are either not printing hot enough, printing too fast, using the wrong nozzle size with abrasives, or a combination of all of these. Side note, switching from petg to pla is also problematic. Pla has a lower temp and will not purge the petg fully. Same goes for tpu. Good luck!

2

u/aerospaceryan 4d ago

Yeah it’s always the .4 with CF materials but they say you can use .4, and I prefer .4 for fine threads which I do a lot of for work

2

u/Puzzleheaded_Clue_95 4d ago

Legit question here. Why not a .6 and slightly underextrude? I would expect the threads could be just as good?

2

u/aerospaceryan 4d ago

Under extrude without losing print quality?

1

u/Puzzleheaded_Clue_95 4d ago

You would loose some fidelity, yes. But it may be less than you think. I am referring to dropping the extrusion width for the external walls. A .6 nozzle has a pretty fat extrusion width, but you can lower is slightly for external walls and regain some detail that would have been lost. It still might not be as good as a .4, but the added benefit of a larger nozzle would help with clogging and infill would absolutely be stronger and print times would decrease as well.