PLA-CF Print Settings
Expert-recommended PLA-CF (PLA) settings for all Bambu Lab printers
Why use PLA-CF?
- Carbon fiber reinforcement increases stiffness by ~50% over standard PLA
- Reduced warping compared to standard PLA
- Professional matte textured finish from carbon fibers
- Higher heat resistance than basic PLA
- Excellent for structural prototypes, drone frames, and jigs
- Lighter weight than solid plastic due to fiber content
What are the best PLA-CF print settings?
Use default Bambu Lab temperature profiles for PLA-CF. Recommended outer wall speed is 150 mm/s.
| Setting | Value | Note |
|---|---|---|
| quality.lineWidth.default | 0.44 | Slightly wider lines for better fiber alignment |
| strength.walls.wallLoops | 3 | Extra wall for structural integrity with CF |
| speed.layers.outerWall | 150 | Slower to prevent fiber-induced surface roughness |
| speed.layers.innerWall | 250 | Moderate inner wall speed for CF |
| speed.layers.sparseInfill | 400 | Reduced infill speed — CF is more viscous |
| support.filament.interface | Support for PLA (Bambu Lab) | Breakaway interface for CF parts |
| support.filament.base | Same as model | PLA-CF as bulk support |
| quality.advanced.bridgeFlow | 0.95 | Slightly reduced bridge flow for CF |
What nozzle size should I use for PLA-CF?
0.4mm hardened steel REQUIRED — brass nozzle will be destroyed by carbon fibers
0.4mm hardened steel nozzle (H2D comes with hardened nozzle)
0.6mm hardened steel — fibers flow more easily through larger nozzle
How do I dry PLA-CF filament?
Dry PLA-CF at 55°C for 4-6 hours. Moderate — CF PLA absorbs moisture faster than standard PLA
What support material should I use with PLA-CF?
Recommended: PLA-CF base + Support for PLA interface
Base: Same as model (PLA-CF) | Interface: Support for PLA (Bambu Lab)
PLA-CF as bulk support with Bambu's breakaway at interface. CF texture helps supports break away cleanly even at the base.
~25% less support filament used
Expert Tips for PLA-CF
- MANDATORY: Use hardened steel or ruby-tipped nozzle. Carbon fiber destroys brass nozzles within hours.
- Dry the filament (55°C for 4-6h) — CF PLA absorbs moisture faster than standard PLA.
- Retraction settings can stay near default; CF PLA strings less than standard PLA.
- The matte CF texture naturally hides layer lines.
Which Bambu Lab printers work with PLA-CF?
Alternatives to PLA-CF
If you need better chemical resistance and outdoor durability with CF stiffness
Trade-offs: Harder to print than PLA-CF. Higher printing temperature. More stringing potential
If you need maximum stiffness and heat resistance for industrial-grade parts
Trade-offs: Much harder to print — needs enclosure and thorough drying. Higher cost ($42.99 vs $31.99). Not compatible with A1 printer
If you need CF stiffness with UV resistance for outdoor structural parts
Trade-offs: Requires enclosure. Hardened nozzle mandatory. Fumes during printing
Get your full PLA-CF profile
Use Print Advisor to generate a complete Bambu Studio-compatible JSON profile for PLA-CF, customized to your priorities and printer.
Open Print Advisor