MarkForged releases test data on CFF materials

Carbon fiber continuous filament fabrication materials for 3D printed composites are actually 30 times stronger and stiffer than unreinforced ABS.

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After months of diligent and rigorous testing, MarkForged (Sommerville, MA, US) has announced final material specifications for its FFF (Fused Filament Fabrication) and CFF (Continuous Filament Fabrication) materials.

The company has completed tensile, flexural, compressive, and heat deflection temperature testing for its complete materials line-up including carbon fiber, KEVLAR fiber, glass fiber and nylon polymer.

Initially, MarkForged stated that its carbon fiber CFF was up to 5 times stronger and 20 times stiffer than ABS, but new numbers that include third party testing show this material is actually up to 30 times stronger and 30 times stiffer than Acrylonitrile butadiene styrene (ABS) thermoplastic commonly used in 3D printing. Download the data sheet summary of mechanical properties at markforged.com/materials/.