3D printer filament BambuLab PET-CF 1.75 mm 0.5 kg with reusable spool — Black

BambuLab PET-CF 1.75 mm filament in black, supplied on a reusable spool, is a carbon-fiber reinforced PET material designed for 3D printing applications that require improved stiffness and dimensional stability compared with standard PET. The filament has a 1.75 mm diameter and comes in a 0.5 kg quantity, compatible with printers that accept 1.75 mm filament. It is intended for functional prototypes, mechanical parts and components that benefit from higher rigidity and reduced deformation under load.

Advantages

Carbon-fiber reinforcement increases stiffness and tensile modulus while maintaining the chemical resistance and ease of printing associated with PET. The black color provides a neutral finish suitable for parts where appearance and concealment of layer lines are important. The reusable spool reduces packaging waste and can be returned to reuse or refilled, supporting more sustainable material handling. The 1.75 mm diameter ensures compatibility with a wide range of desktop and industrial 3D printers that specify this filament size.

Suitable for

• Functional prototypes requiring higher stiffness than standard PET
• Mechanical parts, brackets and housings with dimensional stability needs
• Toolable components and jigs that are subject to repeated mechanical stress
• Parts where a darker, uniform surface finish is preferred

Key specifications

• Material type: PET reinforced with carbon fiber
• Filament diameter: 1.75 mm
• Net filament weight: 0.5 kg
• Color: Black
• Packaging: Reusable spool
• Mechanical properties: increased stiffness and dimensional stability compared with standard PET

How to use

Load the filament on a printer that supports 1.75 mm filament and follow the printer manufacturer's instructions for filament loading and extrusion. Use print temperature, cooling and bed adhesion settings appropriate for PET-based materials and adjust for carbon-fiber reinforcement where required. When preparing prints, consider nozzle wear: carbon-fiber reinforced filaments are abrasive and a hardened or wear-resistant nozzle is recommended for prolonged use. Store the spool in a dry environment when not in use to minimise moisture uptake.

Usage recommendations

For reliable results, print with a hardened nozzle, tune retraction and extrusion multiplier to compensate for the composite’s flow characteristics, and keep filament dry using desiccants or sealed storage. Validate settings on small test parts before running full-sized components.