I wanted to use my standard GoPro mount with the sliding bracket so I made this.
You can find the original files & model I remixed from here: https://www.thingiverse.com/thing:2010233
Printer Brand: MK3
Printer: Prusa i3
Rafts: Doesn't Matter
Supports: Yes
Resolution: 0.15
Infill: 80%
Notes:
Only used supports for the mount. The wingnut does not need any.
The author marked this model as their own original creation. Imported from Thingiverse.