All-in-one fan duct for Argento v6

This is a first version All-in-One fan duct and hotend for Argento-v6 hotend.
Is inspired in http://www.thingiverse.com/thing:1292038 and using ideas from http://www.thingiverse.com/thing:1384844.

There are two models.
One with a 30 mm hotend fan and two 40 mm layers fan.
The second model, the one I'm currently using is with three 30 mm fans. This second model could be designed to avoid using supports (extending the lateral side of the fans like the first model), but I liked better this w