Configurable OpenSCAD Square Tubing Connector Generator

This is mostly a remix of http://www.thingiverse.com/thing:14061. I just streamlined the SCAD code a bit, and added options for all possible orthogonal permutations (up to 6 tubes per connector). Should be easily scalable, though I've only tested it on 1" aluminum tubing. Comes with a test finger option, so you can dial in your desired fit without wasting a lot of time and plastic.

I will post links to things made with this SCAD file soon.

WARNING: FOR LIGHT DUTY ONLY!
The obviou