Fan duct 40mm fan to blower plug

I made a fan duct so I can use my 40mm fan on Thorped's duct. Not a perfect fit, but good enough.

Thorped's fan duct: http://www.thingiverse.com/thing:1621937/

Fan plate source code from http://www.thingiverse.com/thing:735038

Please note that the adapter should be used only until you get a radial fan; the cooler is designed for a fan that can create a bit of pressure, and axial fans don't move enough air to make the cooler work as designed (see the comments on the cooler thing).