double hobbed Extruder for 3mm Filament
Description
I Converted My Direct Driven Printer To A 3Mm Bowden. But Now With More Friction, Because Of The Ptfe-Tube, My Filament Grinding Increased. So I Designed This Extruder With Two Hobbed Bolts. And The Special Profile Of The "Hobbs" In The Bolt. And My Filament Grinding Was Gone. You Need: 6 X Bearing 608 1 X Bearing 6000 Some M4 Screws Some Headless M3 Screws
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