Wahao Duplicator 6 "Antalus Duct" Remix (40x40x20mm blower fan)

This is a modification of Antalus' wonderful fan duct design (http://www.thingiverse.com/thing:2118768). I modified it to use the common 40x40x20mm fan ducts that you can purchase just about anywhere. There is a slight reduction in X-axis build space (see UPDATE text below).

Fan is attached using two M3x16mm screws with nuts. If you don't have them on hand, they are available at Home Depot in the drawers in the "Screws and Bolts" section, or probably any local hardware store.

Here is a vid