Snap-Fit Blower Fan Duct mount for Wanhao Duplicator i3

This is a mount for the [Snap-Fit Blower Fan Duct](http://www.thingiverse.com/thing:1109880). This duct and mount combination allows you to quickly iterate of your fan solution without having to generate and entirely new fan duct.

The default fan duct settings worked well for me with only a extruder temp drop of about 5c when the fan is at 75%.

Update 11/30/2015: Fixed position of the fan
Update 11/10/2015: Added the missing i3.scad file