USB Microscope to GoPro adapter

This part grips one of the very inexpensive USB Microscopes, to attach it to a GoPro mount. This is the first step in a project to make a useful video microscope using a $10 camera macro focus rail to provide solid support for the camera. I'm publishing just this part because it adapts to GoPro format, and thus is a useful standalone part.

I found it difficult to print the round end of the GoPro tabs so I added very narrow supports to the design. These are easily cut off, and the end can be sanded. All the other approaches I tried (such as using supports) made the end of the tabs too wide.

This design is public at OnShape.com. The link is goo.gl/HTtGzs. If you are signed up at OnShape you can copy and modify the design. There are parameters at the beginning of the design table which control most of the design.

For printing, I used two layers of skirt very close to the part, 0.2mm layer thickness, no raft, no support and slow speeds for the first layer. I've only printed this i