Parametric Knob

thingiverse

Lose a knob for an electronic device? Try printing a new one using this SCAD script. The snap-on knob is designed for a shaft with a flat, featuring an internal stress-relieving slot to ease installation. To use the script, measure your shaft's diameter, decide on the height of the knurled section, add a skirt to the bottom (optional), and top it off with a dome. Input your measurements into the script, run it, and print the resulting STL file. Enjoy!