Cosmetic Issue

How to Fix Filament Sticking to Nozzle (PETG)

Step-by-step fix for filament sticking to nozzle (petg) on Bambu Lab printers including X1C, H2D, P1S, and A1.

How do I fix filament sticking to nozzle (petg)?

1
Dry the filament first — PETG absorbs moisture that causes steam expansion at the nozzle tip. Dry at 65–75°C for 8 hours.
Setting: Filament drying
2
Reduce flow ratio to 0.93–0.94 for PETG (default is 0.95). Even slightly excess flow causes material to ooze and adhere to the nozzle outer wall.
Setting: Flow ratio
3
Lower nozzle temperature by 5°C and avoid very slow print speeds. At low speeds + high temp, PETG becomes extremely fluid and drips.
Setting: others.nozzle.nozzleTemp

Pro tip: Select "Good Cosmetics" above — it includes flow and temperature optimizations that reduce PETG nozzle sticking.

Related Print Issues

Uneven First Layer Stringing / Oozing Visible Layer Lines Elephant Foot (First Layer Bulge)Warping / Curling / Lifting

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