A lot of folks have issues with the default Bambu Lab X1 Carbon PETG settings right out of the box. When I first got my Bambu Lab X1C, I could not print PETG.
Bambu Lab X1 Carbon PETG Settings - Get Perfect Prints
Bambu Lab X1 Carbon PETG Settings - Get Perfect Prints
X1C PETG settings : r/BambuLab
PETG will not print in my X1 - Bambu Lab X1 Series - Bambu Lab Community Forum
Bambu Lab PETG Basic Gray
Bambu Lab X1 Carbon PETG Settings - Get Perfect Prints
Bambu Lab X1-Carbon Combo EDU Bundle - The Works
Bambu Labs X1 Carbon Prusament PETG settings : r/BambuLab
iSANGHU Indigo Blue PETG Carbon Fiber Filament - Colored 1.75mm 3D Printer Filament, 15% Carbon Fiber Filled, Excellent Layer Adhesion, Not Brittle, Ideal for Critical Parts Printing - 1kg Spool