I utilized a portion of BradleyM1's Keychron Knob Riser to make a standalone 15mm tall knob, for my Keychron K17 Max. It fits other keyboard models with a 6mm diameter stem. Top of knob sits about 16.6mm from top of case, a few mm higher than the stock knob for easier access while maintaining a clean look.
Print top down on printer plate, no supports required. Choose ‘Concentric’ under Print Settings→ Infill→Bottom Fill Pattern to get that finished look! I used a matte PLA for mine and goes well with the finish of the other keycaps.
Enjoy!
The author remixed this model.
I utilized a portion of BradleyM1's Keychron Knob Riser to make a standalone 15mm tall knob.