Nema 17 Knob

thingiverse

The filament feeder knob serves as a crucial component of the filament drive system attached to the nema 17 stepper motor. Its primary function is to assist in pushing the filament through to the extruder with ease. A secure grip on the stepper shaft is achieved by tightening a 3mm nut and cap screw into place, but it's essential not to overtighten or risk breaking the assembly. The finished product looks quite satisfactory, although results may vary depending on individual builds.