3d printing: a lightweight direct drive extruder

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BIQU (aka Bigtree Tech) is now offering the direct-drive extruder it designed for the Bigtree BX printer as a separate part. Dubbed ‘H2 (Hydrogen) Direct Extruder’, it seems to be ‘inspired by’ E3D’s innovative Hermera extruder in many respects, but BIQU made clever decision to build it around a motor the same size as NEMA …

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