Manual feed extruder knob (NEMA17)

thingiverse

Lightweight and low inertia knob makes manual filament loading and unloading a breeze. Crafted to fit snugly onto NEMA17 shafts, but can be secured with an M3 set-screw for extra hold. Works perfectly in conjunction with Compact bowden extruders and related remixes. Update: A new version designed specifically for stepper bores 8mm has been added - perfect for NEMA17 motors equipped with planetary gearboxes. After Your Print You may need to use an M3 tap if you want to secure the knob with a set-screw, or simply heat up the screw with caution. Additionally, warming the bore hole with a soldering air gun before fitting it onto the stepper can make the process even smoother.