SummaryThis is an helmet front mount for a GoPro action cam I use a Ty-rap to secure it to the helmet for the knob and nut, I prefer to use M4 instead of the original M5 (It works the same, save weight and the captive nut has more space around) Printed in ABS with supports enabled and a M4 captive nut inside the fast release attachment 3D models of skate helmet and GoPro camera comes from Grabcad https://grabcad.com/library/skate-helmet https://grabcad.com/library/gopro-hero-3-hd-camera-with-the-frameInstructionsFor captive nuts remember to pause the gcode and insert the nuts a better explanation how to can be found in some of my previous things, see http://www.thingiverse.com/thing:587659 as an example