SmartAlu cooling system

The SmartAlu printer by SmartFriendz is a great machine, but it really needs a fanduct to cool down the printing zone. I adapted the system I made for the SmartrapCore (http://www.thingiverse.com/thing:1190481), and it works pretty fine. :)

You'll need a 12V radial fan, 2 M3x10 bolts, 2 M3x20 bolts, 4 M3 nuts, and one M4x20 bolt and nut.

The support part is designed to replace the original hot end support front part, and the whole thing is conceived to avoid any further modification to the