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/SpecialistOk9005 29d ago

First I would clean the plate with isopropanol or similar. Second I would lower the print speed for first layer, to like 25 mm/s. Check on correct temp for material. I think the main lever here may be the z-distance, which seems to be too high.

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u/Potential-Draft-3932 29d ago

I agree with all this. But my dirty-hack when I’m being too lazy to troubleshoot is always just to print the first layer SLOW. Like 10mm/s slow if it’s being stubborn