(deprecated) CST / X-keys trackball 15 degree wedge V1

New and improved version: https://www.thingiverse.com/thing:4754137

15 degree wedge for a Clearly Superior Technologies (CST) / X-Keys trackball. Designed for the L-Trac but should work just as well with the O-Trac.

Tested and working great for me! There's improvements to be made -- the notch supports in the front could offer a bit more support. The sides could extend down to the notch supports.