The eSUN ABS-CF Carbon Fiber Black 1.75mm 1kg 3D Printer Filament is a high-performance, carbon-fiber-reinforced engineering polymer designed for demanding functional prototyping and industrial manufacturing on desktop FDM 3D printers. Compounded with an ABS base matrix infused with chopped high-modulus carbon fiber strands, this filament delivers exceptional structural rigidity, enhanced dimensional stability, reduced thermal shrinkage, and a premium matte black textured surface finish.

Specification

• Brand / Manufacturer: eSUN
• Product Name: ABS-CF Carbon Fiber Filament
• Color Profile: Matte Carbon Black
• Filament Diameter: 1.75mm (Dimensional accuracy within ±0.03mm)
• Net Weight: 1.0 kg (2.2 lbs) spool
• Base Polymer Matrix: Acrylonitrile Butadiene Styrene (ABS) reinforced with chopped carbon fiber
• Recommended Extruder / Nozzle Temperature: 240°C to 270°C
• Recommended Heated Bed Temperature: 95°C to 110°C
• Recommended Chamber Temperature: Enclosed printing recommended (40°C to 60°C)
• Printing Speed Range: 30mm/s to 80mm/s (High-speed compatible up to 150mm/s+ on enclosed core machines)
• Cooling Fan Speed: 0% to 20% (Low or OFF for maximum layer strength)
• Heat Deflection Temperature (HDT): Approx. 85°C to 95°C (at 0.45 MPa)
• Tensile Strength: Approx. 45 - 55 MPa
• Flexural Modulus: Approx. 3800 - 4500 MPa
• Spool Material: Eco-Friendly Recyclable Cardboard or High-Temp Plastic Spool

Features

• High Rigidity and Structural Strength: Chopped carbon fiber reinforcement significantly elevates the flexural modulus and tensile stiffness of the ABS matrix, resisting mechanical deformation and heavy load strain.
• Significantly Reduced Warping and Shrinkage: Carbon fiber fibers constrain thermal contraction during cooling, making ABS-CF substantially easier to print with less corner curling and edge lifting than standard neat ABS.
• Premium Matte Textured Finish: Produces a stealthy, non-reflective matte black surface that effectively masks layer lines, delivering finished parts that look like injection-molded components.
• High Thermal and Chemical Resistance: Retains strong mechanical integrity and load resistance at elevated working temperatures up to roughly 90°C, while offering good resistance to oils, greases, and environmental exposure.
• Tight Dimensional Tolerances: Precision manufactured with strict ±0.03mm diameter control, preventing filament slipping and extrusion fluctuations during long industrial printing cycles.

Common Applications

• Automotive and Drone Components: Printing lightweight structural brackets, motor mounts, propeller guards, intake ducts, and aerodynamic fairings exposed to vibration and mechanical stress.
• Industrial Jigs, Fixtures, and Tooling: Fabricating rigid assembly jigs, drilling guides, robotic end-of-arm tooling (EOAT), and manufacturing aids.
• Functional Enclosures and Mechanical Brackets: Housing electronic assemblies, radio gear, and high-load mechanical linkages requiring structural rigidity and high heat deflection resistance.

Professional Installation and Maintenance Tips

• Must Use an Abrasion-Resistant Nozzle: Carbon fiber strands are highly abrasive to soft brass. Always install a hardened steel, bi-metal, or ruby-tipped nozzle (0.4mm or preferably 0.6mm) to prevent rapid nozzle wear and diameter widening.
• Print Inside an Enclosed Chamber: To achieve optimal layer-to-layer bonding strength and prevent internal delamination, print with the machine doors closed and maintain an ambient build chamber temperature of 40°C to 60°C.
• Dry Thoroughly Before Printing: Like all ABS-based polymers, ABS-CF is hygroscopic. Pre-dry the filament in an active filament dryer box or convection oven at 70°C to 80°C for 4 to 6 hours before printing to eliminate moisture bubbles and stringing.
• Use Bed Adhesion Aids on High-Temp Surfaces: Apply high-temperature bed adhesive (such as ABS juice, bed spray, or liquid adhesion glue) onto a PEI, smooth glass, or textured plate heated to 100°C - 105°C to secure large first layers.