"Doubowden" Double Hobbed Bolt Bowden Extruder Assembly
thingiverse
This is a high-grip, dual-hobbed bolt bowden-style extruder designed specifically for 1.75mm filament. Custom hobbed bolts have been created to optimize performance. Materials: 4 - 688zz bearings 2 - 608zz bearings 2 - 8mm X ~40-50mm (5/16" may be compatible) 2 - 8mm Nylon insert Nuts (5/16" may be compatible) 4 - 3mm X 8mm bolts 2 - 3mm X 18mm bolts 4 - 3mm X 50mm bolts 7 - 3mm nuts 4 - 3mm washers or more, if desired 4 - compression springs for idlers (exact size unknown) 2 - 8mm X 15mm drill rod (5/16" may be compatible) 1 - Nema 17 Stepper motor Print Settings: Printer Brand: RepRap Printer: Prusa Mendel Iteration II Rafts: No Supports: Yes Resolution: 0.10 mm Infill: I used 30%
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