Prusa inspired encoder knob

thingiverse

I love the Prusa style knob for its ergonomic design. With a Geeetech printer, I immediately knew I had to swap out the round knob for something more convenient - a single-finger operation was essential to me. Unfortunately, existing Prusa designs relied on friction fit, which didn't sit well with me. I wanted a knob that utilized a locking cut on the encoder shaft. This knob is designed specifically for a standard 6 mm shaft. I've included an OpenSCAD file so you can generate your own STL files - feel free to modify the knob width by adjusting the $bolt_width variable, as this will depend on your printer model, print settings, and material type. For my Geeetech printer, 6.3 and 6.4 work well for a typical 6 mm shaft. You can also find these files on GitHub at https://github.com/maniana-net/3D-Prints/tree/master/Prusa%20knob.