The original version was patterned off the Garmin mounts exactly, but I found it unrelable. The screw unscrewed easily since its head was up against the camera's plastic instead of the mount's plastic, and that meant if the camera moved AT ALL it would tend to unscrew. It unscrewed 3 times and on the last time the camera was only saved by the safety tether I had attached.Also, the camera tended to nose down badly as the screw loosened.This version inserts a 1mm thick layer of plastic on the outer support for the screw to push on. This SHOULD reduce the tendency to loosen, but just in case, I'm now using an M4 NYLOCK nut.  Also, I've added a block of support material to PREVENT the camera from rotating - since it's mounted on a bar, you can just rotate the whole mount to get the same movement. Once mounted, I don't ever want the camera to move so this seemed expedient.The SCAD modules can be broken out and used separately. If you have a different diameter pipe, just change the 28mm measurement at the top to something else before printing.  If you make it much smaller you may need to squeeze the VIRB mount down a bit to keep it from gapping at the edges.I just go about 1 mm bigger than my bar so there's just room for a couple layers of electrical tape to provide friction.