Dual stepper MK8 gear direct drive bowden extruder
thingiverse
Having dual steppers driving an extruder allows you to harness the benefits of 0.9 deg/step motors for superior accuracy or 1.8 deg/step steppers for increased torque. The greatest advantage is achieved when using a dedicated stepper driver, rather than connecting multiple steppers in series or parallel to one single driver. To complete this setup, you will need: - Two MK8 drive gears - Two 625-sized bearings for guiding the filament - Eight M3x12 DIN 912 screws for mounting the stepper motors - Four M3 nuts - Two M3x16 DIN 912 screws for securing the extruder halves together - Two M3x10 DIN 912 screws for adjusting drive gear pressure against the filament - Two M3x12 DIN 912 screws for holding the bearings in place - Two M3 washers to secure the bearings - Two pneumatic push-in fittings with M5 threads, sized to fit the bowden tube used
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