Dual Drive Bowden Extruder

thingiverse

Dual drive, Bondtech BMG inspired bowden extruder. Parts: <a href="https://www.amazon.com/WINSINN-Extruder-Bondtech-Stainless-Filament/dp/B0757HSR6X/ref=sr_1_fkmrnull_3?keywords=WINSINN+for+Btech+Extruder&qid=1554951431&s=industrial&sr=1-3-fkmrnull">BTech Dual drive gears</a> <a href="https://www.amazon.com/Miniature-Bearings-MR63ZZ-L-630-673ZZ/dp/B00ZHSQX42/ref=sr_1_2_sspa?keywords=3x6x2.5mm+bearings&qid=1554951474&s=industrial&sr=1-2-spons&psc=1">3x6x2.5mm bearings</a> <a href="https://www.amazon.com/cSeao-Phillips-Machine-Assortment-Stainless/dp/B07CWF669Y/ref=sr_1_19?keywords=40mm+m5&qid=1554951183&s=industrial&sr=1-19">40mm M5 bolt and nut</a> / <a href="https://www.amazon.com/uxcell-Plated-Fasteners-Butterfly-Furniture/dp/B015A3H2GQ/ref=sr_1_6?keywords=m5+wing+nut&qid=1554951570&s=industrial&sr=1-6">wingnut</a> (wingnut recommended) The bearings will fit on the ends of the rod provided with the BTech gears and this assembly will slide into the back of the extruder assembly. The hinged door will hold this in place and pressed against the gear attached to the stepper motor. The 40mm screw and wingnut will allow you to tune your desired tension on your filament. Bowden coupling threads and filament path copied from walter's design.