Home/X1 Carbon/Bambu Lab/PETG-CF
Bambu Lab · overlaid on Bambu's PETG-CF

Bambu Lab PETG-CF for the X1 Carbon

with a 0.4 mm nozzle

The five values to type into Bambu Studio for a Bambu Lab PETG-CF spool — the big one first.

Bambu profiles its own filament, not Bambu Lab's. These start from Bambu's PETG-CF reference and apply Bambu Lab's published specs where available.
Max volumetric flowupdates live
11.5 mm³/s The single value Bambu Studio can’t guess for you
Effective top speed
137mm/s
you asked for 300
target 300 → clamped
Pressure advance K
0.035
starting point — refine on-machine
Flow ratio
0.95
Bambu base (inherited)
Retraction length
0.8mm
Bambu base (inherited)
hotend ceiling 11.5 mm³/s · Bambu default — Bambu Lab publishes none ⚠ clamped — capped below your target speed
Bambu Lab · PETG-CF Carbon-fibre product page
Nozzle255 °CBambu base · not published
Densitynot published
Mfr speednot published
Hardened nozzle required
manufacturer source ↗

Is this right for your spool?

Here's how sure we are — and what to watch.

!
Bambu ships no PETG-CF profile for the 0.4 mm nozzle
Tested sizes: 0.6, 0.8 mm. Using nearest defaults — verify with a calibration print.
Against Bambu stock
flow 0.95 · ceiling 11.5 mm³/s
Source
product page · manufacturer ↗

Why these numbers

Bambu Lab PETG-CF starts from Bambu's PETG-CF reference; Bambu Lab's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.

Hardened nozzle required

Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.

Open in the wizard → change printer, nozzle or speed

Download the Bambu Lab PETG-CF profile

A .zip with the Bambu Studio .json and a Markdown summary of every field.

Open in the wizard
i
Then calibrate in the slicer. Run Device → Calibration → Flow Dynamics after import to lock in the K-factor.

More combinations

Bambu Lab PETG-CF for the A1
/p/a1/bambu-lab/petg-cf
Bambu Lab PETG-CF for the A1 mini
/p/a1_mini/bambu-lab/petg-cf
Bambu Lab PETG-CF for the P1S
/p/p1s/bambu-lab/petg-cf
Elegoo PETG-CF for the X1 Carbon
/p/x1c/elegoo/petg-cf
Eryone PETG-CF for the X1 Carbon
/p/x1c/eryone/petg-cf
Eryone PETG-GF for the X1 Carbon
/p/x1c/eryone/petg-gf