I was looking for a GoPro mount for my cap, but everything I tried was a little loose, and I didn’t want to drill through my cap for that, so I designed my own :D Have you ever noticed that some caps are a little wider on the edge of the visor? I used that part to create a really sturdy GoPro mount by modeling the shape of the cap. I’ve included the .f3d file if you want to modify it to fit your cap because most caps are different.