PLA-CF filaments for 3D printing

PLA-CF filament combines the ease of printing of standard PLA with the strength of added carbon fibers. You will appreciate this composite material for printing technical parts where you need high stiffness and excellent dimensional stability. We actively test established brands like Smart Print and Prof. lab on our own printers. This means we can guarantee reliable results without nozzle clogs and a perfectly consistent 1.75 mm diameter on every spool.

Practical uses for PLA-CF

Thanks to the even distribution of carbon, PLA carbon filament achieves specific mechanical properties and a very attractive matte finish. This surface reliably hides individual layer lines, making parts look like they were professionally injection molded. We recommend this carbon filament for the following practical applications.

• Rigid jigs and precise assembly templates for the workshop.
• Electronics enclosures and other parts with strict dimensional requirements.
• Visual design models and functional prototypes with a technical matte surface.
• Structural parts for drones and RC models where high structural stiffness without bending is key.

Recommended print settings

For trouble-free printing, we recommend starting with the following values. Carbon fibers are highly abrasive, so using a suitable wear-resistant nozzle is absolutely necessary.

When to choose PLA-CF and when to look for an alternative

When selecting a material for your specific project, it is important to consider the mechanical resistance requirements and the operating environment. PLA-CF filament excels in extreme stiffness, but the trade-off is lower overall toughness. If you are printing parts that will be regularly exposed to heavy impacts or vibrations, standard PLA+ is a better choice. It is significantly tougher and you do not need a special hardened nozzle to print it. On the other hand, for more demanding applications requiring higher temperature resistance, we recommend PETG-CF. Carbon PLA starts to soften at relatively low temperatures, while PETG enriched with carbon fibers can handle a much higher thermal load while maintaining similar stiffness and a matte look.

Frequently asked questions about printing with PLA-CF

Will printing carbon PLA ruin a standard brass nozzle?

Yes, the carbon fibers in the filament will wear out a standard brass nozzle very quickly and irreversibly. The increase in nozzle diameter due to abrasion leads to rapid degradation of print quality and extrusion issues. For PLA-CF, always install a nozzle made of hardened steel, ruby, or another highly wear-resistant material in your printer.

Do I need to dry this material before printing?

Although basic PLA is not a highly hygroscopic plastic, the added carbon fibers can absorb moisture from the air much faster. If you notice popping, stringing, or degraded surface quality during printing, we recommend drying the spool thoroughly before use. Properly dried material ensures optimal layer strength and a clean look for your final print.

Can I print PLA-CF on a standard printer without an enclosed chamber?

Yes, this material does not require a heated or fully enclosed chamber, making it a very accessible composite for most open 3D printers. Printing is just as easy as with standard PLA without significant corner warping or shrinking. You just need to swap the nozzle for a wear-resistant variant and you can confidently start producing high-strength parts.

Explore our complete range and discover all filaments that will push your printing projects forward. If you are looking for materials for standard prototyping, check out our standard PLA filaments. For advanced technical applications with higher temperature resistance, we also offer PETG-CF filaments. And if budget is key for your project, you will definitely be interested in our affordable filaments, where you will find reliable materials for everyday printing.