"Anyone who's worked with flexible 3D printing filaments knows their limitations; TPU and TPE only go so far, and nothing on the desktop market has matched the heat resistance and elasticity of real silicone. We've been stuck making parts that feel rubbery but fail the moment they get too warm or need to seal properly. That's all changed with the arrival of Prusa's new XL printhead, developed in collaboration with Filament2."
"Instead of extruding a simple thermoplastic, this system feeds two liquid-core filaments into the nozzle, where their outer sheaths are stripped away. The liquid silicone components are then mixed and cured in real time as they are deposited. This is not some rubber-like substitute; it is genuine silicone with all its useful properties, created right on the print bed of a standard Prusa XL."
Desktop 3D printing achieves genuine silicone fabrication through a dual-filament system that feeds two liquid-core filaments into a single nozzle. Outer sheaths are stripped, the liquid silicone components mix and cure in real time, and the result is industrial-grade silicone with heat resistance and elasticity. The filament's sheath allows handling like a standard PLA spool while eliminating pumps and reservoirs. The printhead performs precise micro-scale two-part mixing, enabling functional, end-use silicone parts without hazardous mess or complex liquid systems.
Read at Yanko Design - Modern Industrial Design News
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