Titan Aero Fan shroud

This fan shroud is designed for a Titan Aero extruder. I tried a number of other fan shrouds but they would not print well without supports, so I designed this one to print flat on the bed without supports. Feel free to modify as needed.

It uses a standard 50mm centrifugal fan like this: https://www.amazon.com/dp/B071WMHNG5

The mount is separate and visible in the pictures See thing: https://www.thingiverse.com/thing:2943038

UPDATE (6/19/18): I modified the fan shroud to have slight