Home Practice & Makers 3D printing with glass fiber filament: New material options for demanding applications

3D printing with glass fiber filament: New material options for demanding applications

In a new video, Youtuber ModBot tests a PET filament with 15% glass fiber additive (PET-GF) for 3D printing. Compared to his previous test with PET and carbon fibers, there are some interesting differences in the material properties.

While the carbon fiber filament has higher temperature resistance and tensile strength, the PET-GF scores points for impact strength. The improved mechanical properties allow it to be used for demanding applications, but the printing process also requires the appropriate hardware. According to ModBot, a fully metallic hotend is required that can withstand temperatures of 280 to 320 degrees Celsius.

The drive should also be tailored to the requirements. ModBot uses a Clockwork 2 dual-gear direct-drive extruder with high-quality gears. The parts of the test were printed on a powder-coated PEI print bed with adhesive. Thanks to optimized print settings with a maximum speed of 100mm/s, ModBot was able to achieve impressive results with PET-GF.


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