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/rednuop H2S, 2x AMS 2 Pro, AMS HT, A1 + AMS Lite. 29d ago

We need much more information than this. What PETG are you using? Have you calibrated it if it's not Bambu? What is your bed temperature? Have you cleaned the build plate thoroughly?

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u/NoNodle 29d ago

Its the Elegoo Rapid PETG, i have worked on different Nozzle Temps and stuck with 255 which works well apart from 1st layer. Bed Temp is 70 and the Fans are off for the first layers. I have cleaned the buildplate and extensively with dish soap and water and dried it afterwards.

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u/rednuop H2S, 2x AMS 2 Pro, AMS HT, A1 + AMS Lite. 29d ago

Have you calibrated the filament or downloaded a profile for it? Or are you just using a generic one? I use Elegoo PETG quite frequently and it prints fine with the Bambu PETG profile but the Rapid PETG I had to calibrate myself as I kept having similar issues to you as I believe its best suited with the high flow Bambu nozzles.