Raspbery Pi 3 support arm for 20 x 20 extrude aluminum rail

Decided having my Pi floating loose on the printer table wasn't desirable, i found a case that could accommodate a screened version of the raspberry Pi that looked good. once it was printed I measure the final case size and design this support arm to place the Pi to the left side of the control interface.

Raspberry Pi Display Case
by ftobler

http://www.thingiverse.com/thing:1229473