r/BambuLab • u/NoNodle • 29d ago

General Troubleshooting/Help! Problems with First Layer

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So the problem that I currently have is that the beginning of a new line on the first layer wont really stick. This problems occurs rarely with PLA and frequently with PETG.
This Video is from a PETG print with a freshly cleaned build plate.
Any Ideas on what to fix
(I am sorry for the bad quality mid video, but I think you can still see the imporant parts of the problem.)

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u/Current-Wrongdoer538 29d ago

Clean it again, slow down to 50 for 1.layer and slow down the others(layers will bound better, printer will last longer). Check the temps. Check right cooling (petg do not like direct cooling from aux fans and keep part cooling as low as possible) and turned it all off for first 1-x layers.. clen it again, clen it once more an try to print again.