PrintrBot Simple 2014 Fan Duct

I tried a few of the fan ducts/cowls listed for the PrintrBot, but there seem to be so many variations and custom versions of the Simple that none of them fit quite right.

This duct is made for an absolutely stock PrintrBot Simple 2014. I haven't done a whole lot of testing with it yet, but I can feel a nice breeze going past the extruder tip when the fan is on, so that seems a good sign.