Dual 8mm linear rod holder for openbeam

This is a riff on http://www.thingiverse.com/thing:91998, although this piece was designed from scratch in Sketchup.

This piece holds two 8mm rods at 49mm apart; the piece is designed to mount along one length of OpenBeam.

I didn't include the little guides on the backside that center the piece in the t-slot; I wanted to make sure this would print without issue first.

UPDATE, this printed out without issue but it's a pain in the butt to fit the 8mm rods - I'll update this file if I get