T-slot Adjustable Angle Hinge

Design for an adjustable connector to fit two 1010 type T-slot rails together. Still at early WIP stage, so some other pieces may change. Most likely putting on some holes for nuts or bolts (needed) and an alternate hinge piece with an anchor base on it.

Yes there's another hinge for T-slot rails, but if you look at it it seems to be for a different application. In this case it's setting the angle for T-slot rails end-to-end, which I think will be useful in other ways.

The hinge itself wil