PET-CF
Carbon fibreVery stiff, heat-resistant and dimensionally stable, but brittle under impact.
Best for Stiff fixtures and jigs · Brackets under steady load · Precision parts
- Heat resistance
- Impact resistance
- Tensile strength
Material Guide
PET-CF
Carbon-Fibre Reinforced PET
Very stiff and heat-resistant composite, less sensitive to humidity than nylon composites.
Printed onP1S
Nozzle260–300 °C
Bed80–100 °C
Drying80 °C, 8–12 h
EnclosureRequired
Introduction
What PET-CF is and when to use it
PET-CF is PET reinforced with chopped carbon fibre. It is one of the stiffest and most heat-resistant materials we print, and it holds its dimensions well — useful for parts that must stay precise under load or warmth.
The trade-off is toughness: it is brittle under impact, so it suits parts loaded steadily rather than parts that get knocked or dropped. Carbon fibre is abrasive, so we print it with a hardened steel nozzle on the enclosed P1S.
Choose it when
- Maximum stiffness and heat resistance
- Precise parts that must keep their shape
- Fixtures, jigs and brackets with steady loads
Avoid it when
- Parts that take impacts or get dropped — choose PC, PETG or nylon
- Snap-fits and flexible features
How we print it
Print parameters
| Nozzle temperature | 260–300 °C |
| Bed temperature | 80–100 °C |
| Drying | 80 °C, 8–12 h — required |
| Enclosure | Required — printed on the enclosed P1S |
| Nozzle type | Hardened steel nozzle |
| Printers | Bambu Lab P1S — enclosed, 256 × 256 × 256 mm build volume |
Typical ranges from the Bambu Lab Wiki filament guide; exact settings depend on the brand and grade.
Grades we print
PET-CF types and when to use each
Every grade below can be printed on our Bambu Lab printers. Not sure which one fits? Describe the part and we'll recommend one.
Need a part in PET-CF?
Send your file and tell us how the part will be used — we'll confirm the right grade before printing.
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