Fan duct collection

This is a fan duct collection for the: Fan Mount for Prusa i3 Greg's Wade Extruder (thing: http://www.thingiverse.com/thing:168303 )

My favorite is the fanDuct5.stl, i am using it on my Prusa I3 with Gregs Wade Extruder.

You can see in the pictures that have been treated with acetone vapor for smooth surface :)