This is a camera bracket to be used with 2 Vholdr Contour cameras to create a stereoscopic 3d video. The bracket places the center of the lens ~6.35cm apart, which according to my research is the ideal distance for lens placement. I have yet to fully test this yet due to my lack of a second camera, but the mounting of the camera itself is near perfect, and only limited by the resolution of my printer. Which leads to a snug fit on the rail side of the bracket. Also I left out the tripod mounting hole in the center of the design until I can identify a treaded insert that works well with pla and produced a finished looking result. Contact me at www.struvedesigns.com with any questions.Currently the design calls for the use of m2 6mm bolts, nuts, and washers to affix the cameras on one side in conjunction with the rails on the opposite sides. I have yet to test the fit of the nuts inside the camera grooves, but they should fit based on the specs of a m2 nut. You'll also need a 1/4-20 threaded insert if you plan on mounting the assembly to tripod or some sort of mounty bracket that uses the standard camera mounting screw.