Black and Blue Control Knob Collection

I worked in radio in the old days, and I always loved the “fluted” control knobs on the analog control boards we used before sliding /fader type controls were commonplace.  

This collection of knobs is based on an earlier design I did that I made some improvements to. 

It also prints way better in PLA than it does in PETG.   Its also a good idea to use variable layer heights to print the dimples at a lower layer height for improved detail.  This is reflected in the gcode i've attached.  Please note the gcode includes all four knobs.  

Each model just has a different configuration of the nubs/indentations depending on which one you prefer.    Will work on any standard 6mm potentiometer stalk.

Printed with 0.4mm nozzle in Overture PLA+ and variable layer heights.  No supports needed.  

I used filament swaps to add in contrast, but you don't have to.