ColorFabb Releases Advanced Carbon Fiber Composite 3D Printing Filament

Innovation at colorFabb rarely slows down. Ever since the Dutch filament manufacturer formalized its collaboration with plastics giant Eastman Chemicals, and its extensive list of exclusive polymers, many new products have hit the market, especially those based on the XT copolymer.

The latest one is considered by colorFabb to be its most advanced yet, by integrating as much as 20% carbon fiber into Eastman’s Amphora 3D polymer.

While combining carbon fibers into 3D printing filament is not an entirely new process, colorFabb’s new XT-CF20 offers several advanced properties, starting from the extreme high flex modulus of 6.2 GPa, which makes it twice as stiff as PLA, although just as easy to use.

The company reports that they have tested  the material on 8 printers (which include a Leapfrog Creatr, an Ultimaker 2, Replicator 2X, A Delta Tower and a reprap systems, among others) for 6 weeks, without a single nozzle jam or other related thermal issues. The only issue to consider is the abrasive nature of the carbon fibers, which, in general, will accelerate the nozzle-wear of brass nozzles, much faster than unfilled filaments. ColorFabb recommends to use nozzles in stainless steel or hardened copper alloys. … (read more)