Da Vinci 2.0 Rear mount cooling fan shroud

UPDATE. I actually don't like this thing anymore. It kept getting caught on the screws on the back of the bed. So I have made a better design that attaches to the front. http://www.thingiverse.com/thing:553792

This fan shroud will attach to the back of the Da Vinci 2.0 tool head. This is for the Dual Fan model. It redirects air from the second fan to cool the extruded plastic. Please note that repurposing one of the two fans does reduce the cooling to the extruders. I am working on