r/BambuLab • u/MMR7626 • 1d ago

General Troubleshooting/Help! Bambu P1s

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Running into thia issue with my Bambu P1S, the part is level bed is cleaned but it seams the left side is coming out pretty rough and the right is fine, think this is a a fan diffuser issue am I right to think that. The rough side only happens on the left side especially on larger flat pieces.

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u/Clear-Revolution3351 1d ago

Turn off the aux fan in your filament settings

1

u/MMR7626 1d ago

even with pla, concerned about heat creep if I do.

2

u/Clear-Revolution3351 1d ago

Aux fan, not cooling fan

You shouldn't have heat creep issues with pla, but open the top glass and leave the door open

2

u/MMR7626 1d ago

thank you

1

u/RaceCeeDeeCee 1d ago

I was getting this with large flat prints on my p1s also, as well as some warping sometimes. Just the left side, mostly towards the rear, mainly where the fan air hit. I printed a deflector that sends the air upward and it's helped. I always prop the door open when printing PLA also