Bambu Lab PLA-CF
Manufactured by Bambu Lab
Quick Summary
PLA-CF is plain PLA with chopped carbon fibre mixed in, and the change is easy to feel: parts come out stiffer, lighter in appearance, and finished in a deep speckled matte that hides layer lines better than any matte additive. It prints at 210-240 °C on any printer that can hold a hardened nozzle. It also destroys brass nozzles, and it is more brittle than the PLA it is based on.
Print Settings That Work
Run 230 °C nozzle with the bed at 55-65 °C on textured PEI. Part cooling at 50-100% and speeds up to 250 mm/s are in spec, so this is not a slow material.
Two prerequisites. First, a hardened steel nozzle; brass is consumable here and the failure is gradual enough that people blame the slicer for weeks. Second, drying at 55 °C for 8 hours if the spool has been open, because the filler makes the filament pick up moisture faster than plain PLA.
A 0.4 mm nozzle works, but 0.6 mm reduces the chance of the fibre bundles clogging on long prints and suits the material’s chunky aesthetic anyway.
Print Quality
The surface is the best reason to buy it. Fine texture, no gloss, no visible banding, and it stays looking good on large flat faces where plain PLA shows every temperature wobble. Stringing is essentially absent; the filled melt does not draw threads the way unfilled PLA does.
Stiffness is genuinely higher than PLA Basic. A long thin bracket flexes visibly less. What you lose is ductility: the same bracket, overloaded, cracks rather than bending, and layer adhesion is the weakest number in this review.
Where It Falls Short
Brittleness and nozzle wear are the two real costs, and both are structural rather than fixable with settings. It is also priced above plain PLA while being mechanically worse in the ways that usually matter for functional parts.
Small features with thin walls can chip during support removal. Design generous fillets.
Verdict
Buy PLA-CF when you want a rigid, great-looking part on an easy PLA process: camera rigs, drone frames that are not crash-critical, jigs, display pieces with visible flat surfaces. Do not buy it expecting nylon strength, and do not run it through a brass nozzle.
- Bambu Lab PLA-CF vs bambu pla basic — PLA Basic is cheaper, prints on any nozzle, and bends before it breaks. PLA-CF trades all of that for stiffness and a superb matte finish.
- Bambu Lab PLA-CF vs polymide pa6 cf — PA6-CF is the real engineering material and costs like it; PLA-CF gives some of the look and rigidity without a 300 °C hotend or a drying regime.
What temperature should I print Bambu PLA-CF at?
The recommended nozzle range is 210-240 °C, with the bed at 45-65 °C on smooth PEI or 55-65 °C on textured PEI. Dry at 55 °C for 8 hours before printing; the carbon filler holds moisture more readily than plain PLA.
Do I need a hardened nozzle for PLA-CF?
Yes. Chopped carbon fibre wears brass out of round within a few hundred grams, which shows up as sudden over-extrusion and lost detail. Fit hardened steel before the first print.
Is PLA-CF stronger than normal PLA?
Stiffer, not tougher. Carbon fibre raises rigidity and reduces the way a part bends under load, but it also makes failure more sudden. For impact resistance choose PETG or a nylon; for a rigid, dimensionally stable part, PLA-CF is excellent.