I really wanted a quick release mount that could be bolted on to other GoPro mounts and couldn't find anything like this on here.
I took Tekin76's awesome mount and remixed it with a hinge to be able to bolt on to other GoPro mounts. This is my first model (well a remix) and am learning Autodesk Fusion 360 as I go :)
I hope some others find this useful. I'm using it on my bike so that I can easily remove my GoPro without having to unscrew bolts if I stop for a short while and lock my bike up.