Microsoft VX-xxxx mount

Added a hole in the middle to put the pin back in, that area needs to be thinner if you want to us the pin clip. I didn't bother as the pin is held in via the circuit board and friction.
Added a mounting hold to the back so it can be used with this thing, https://www.thingiverse.com/thing:2516411

Should work with most Microsoft VX-xxxx models that had that rubber boot leg thing.

To take it apart,
1. pop the silver ring off, its just glued on
2. Unscrew the 2 screws you see next and remove that cover
3. Unscrew the next 3 screws you see and remove the outer cover
4. Remove the next 3 screws on the circuit board and remove the board carefully
5. Pull the clip holding the original mount on and remove the pin
6. Do it all in reverse after installing the printed mount