It's just a minimalistic lightweight knob, that is compatible with GoPro accessories. Made it to attach flashlight to my bicycle helmet - I use GoPro mounts for that. But standard GoPro knobs are too large and not so handy.
You'll need to buy M5 30mm bolt to assemble it.
SolidWorks source and Simplify3D factory file attached.
GoPro-MiniKnob.factory | 304.2KB | |
GoPro-MiniKnob.SLDPRT | 352.3KB | |
GoPro-MiniKnob.STL | 704.8KB |