Tactical Rail Rifle Frame for VR FPS

This is a VERY sturdy design for a modular VR rifle frame. I've long since lost the link for the Oculus Rift controller cups that I remixed from another design, but I only have a CV1 Rift, so I can't even test other controllers if I wanted to. I included the steps so that anyone can load this in the cad model of their choosing and adapt controller cups to work. You'll also need 3 M3 inserts per joint with screws, and as many inserts as you'll need to mount stuff up top. I recommend 3 sections for adults, and 2 for kids. Once the cups are printed, I recommend finding the rough location you want them mounted, then only install the inserts needed to hold the cups. I designed this 3 years ago, and I've never moved my cups.