I wanted to create a better way to fit my GoPro to the stock anti-vibration mounts on my ZMR250 mini quad. The stock GoPro frame and mount sits the camera too high and this causes the camera to wobble excessively. This design will allow easy fitment of the camera into the case and give the GoPro a very sturdy structure to film from. Print the two components and line up the holes on the bottom, then glue them together. Simple. I tried a few different designs to have them interlocking but I didn't want it to come apart in-flight. Also the camera is slightly off-center because of the camera's CofG, so the vibration mounts will work better since the camera and frame will be perfectly balanced between the four anti-vibration balls.
If you want to purchase the Gopro3 Silver case that works with this base plate, check it out here: https://www.shapeways.com/model/2960551/zmr250-quadcopter-gopro3-silver-frame.html
The Base is a modified version of my original base, except this has a 10 degree tilt to allow the camera to film better when the quad is flying at high speed.