jhead fan duct for prusa i3 rework 1.5

(First : sorry for my english...)

Fan duct for prusa i3 rework 1.5 jhead from imotion tech.

The first part I made from one I found here (http://www.thingiverse.com/thing:1221795). I tried to optimise fluxes of original part and I added the part to link it.

Easy to print, no supports needed.

An other type of fan duct here : http://www.thingiverse.com/thing:1564502 . It is also really easy to print.