Firefighter GoPro helmet mount

thingiverse

Attaches securely to the lip of a firefighter's helmet or another. Inserts brass inserts into two pre-drilled holes, using either an M6 or 10-24 threaded insert and a soldering pen to fit them snugly into place. Then, screws made of plastic or metal (plastic leaves no marks on the helmet) are tightened in place with M6 or 10-24 threads. A small nut that fits inside the GoPro attachment is an M5 size, which clicks securely into position without any adhesives needed. Two versions exist: one has a .5 inch opening and the other features a smaller .25 inch opening.