Filaments with chopped carbon fiber composite are a popular choice for engineering and industrial application boosting the stiffness and mechanical performance of 3D prints.

The carbon fiber reinforcement typically decreases layer adhesion performance, to overcome this issue we recommend using Polymakers carbon fiber filaments manufactured with Fiber Adhesion™ technology. Fiber Adhesion™ technology improves the layer adhesion of fiber reinforced materials, by optimizing the surface chemistry of the fibers to achieve better dispersion and bonding to the matrix. This results in better strength along the Z-axis and reduced mechanical anisotropy.

PolyMide™ is a family of Nylon/polyamide based filaments. Produced with Polymaker’s Warp-Free™ technology, PolyMide™ filaments deliver engineering properties intrinsic to Nylon and ease of printing. PolyMide™ PA6-CF is a carbon fiber reinforced PA6 (Nylon 6) filament. The carbon fibre reinforcement provides significantly improved stiffness, strength and heat resistance with outstanding layer adhesion.

We highly recommend to use a wear resistant nozzle, and to keep it at dry conditions (relative humidity of 15% or less) at all times to maintain the best printing results.

• Excellent Stiffness & Strength - Featuring a tensile modulus up to 7.4 GPA on the XY axis and 4.3 GPA on the Z axis, PolyMideTM PA6-CF is well suited for high performance industrial and engineering applications. PolyMideTM PA6-CF combines extreme stiffness and best-in-class tensile strength. PolyMideTM PA6-CF is an excellent choice for dry applications[1] requiring stiffness and durability such as automotive brackets, jigs, ESD safe fixtures, aerospace, prosthetics and engineering.
• Excellent Heat Resistance - Featuring a high heat resistance up to 215°C after annealing[2], PolyMideTM PA6-CF offers excellent heat resistance for demanding applications where heat and stress are critical design factors. This material lends itself perfectly to functioning automotive applications where a combination of heat resistance and mechanical properties are required.
• Outstanding Layer Adhesion - Most fiber reinforced materials show a decrease in z-axis layer adhesion when compared with their non-fiber reinforced Nylons, producing a part that is only stronger on the X-Y axis but detrimental to the Z axis. Polymakers new technology in PolyMideTM PA6-CF not only solves this problem but actually increases Z axis tensile strength creating more isotropic parts that are strong in every direction.
• Warp-FreeTM - PolyMideTM PA6-CF features Polymakers Warp-FreeTM technology to deliver a reliable Nylon filament with excellent dimensional stability and near-zero warpage. This is achieved by the fine control of microstructure and crystallization behaviour of Nylon, which enables the material to fully release the internal stress before solidification. The Warp-FreeTM technology in PolyMideTM PA6-CF is designed to work best with minimal bed temperatures.
• Wear Resistant and Tough - Parts printed in PolyMideTM PA6-CF display excellent toughness and wear resistant properties.
• ESD Safe - PolyMideTM PA6-CF is an ESD safe material making it a suitable
• candidate for printing electronic jigs and fixtures
• Improved Printability – Unlike many other Nylon filaments, PolyMideTM PA6-CF is extremely easy to work with, exhibiting excellent dimensional stability. It is compatible with most filament-based 3D printers with no heated bed or chamber required!
• Uncompromised Quality - Polymakers leading quality control process and rigorous in-house testing ensure reliable printing and consistency across spools and batches.

PolyMide PA6-CF available in 500g and 2kg rolls and in Black. 500g Filament will fit in a Ultimaker Material Station

Please see attached pdf for recommended Print Settings and Mechanical Properties

[1] Most Nylon parts in the real world undergo a process called "Moisture conditioning" which improves toughness and flexibility of the Nylon while reducing tensile strength and stiffness. Unless protected with a moisture barrier, PA6‐CF shows a greater change in mechanical properties when
subjected to water / high humidity in comparison to long‐chain nylon filaments like PA12‐CF or PA612‐CF. In simple terms PA6‐CF will typically offer the best properties in a dry application, but for a wet or high humidity application a longer chain nylon such as PA612 or PA12 may be better.
[2] PolyMideTM PA6‐CF displays the best mechanical and thermal properties when fully crystallized. The printed part will not reach full crystallization during the printing process, an additional step is required: Annealing. PolyMideTM PA6‐CF can be annealed in the oven at 80 ̊C for 6 hours right after the printing process.