Active cooling Duct for Foldrap 1.1 (40mm fan)

I wanted to get better cooling for my foldarap and I only have the 1.1 version (to lazy to change to 2.5) so I designed this thing! Since I used this X-carriage, I used the same system to attach the duct on the head: http://www.thingiverse.com/thing:84345

You might have to adjust the holes sizes, by hand to make a better fit. (especially for the part 3)

I welded part 1 and 2 by melting the edge with a lighter, but you can use glue as well.

Part 2 should be around 2 layers thick.

On t