T-Ring - telescope adaptor | DSLR to telescope

I bought a two-piece $60 adaptor at a camera store just like this one and realized it's really just a piece of plastic, so I figured I'd model/print my own and save myself those $60! The model in the photos isn't the final plan, I made a few small adjustments to it worked better.

Camera attachment end taken from nickswimsfast here:

http://www.thingiverse.com/thing:88093

Everything else was designed by me!