I designed this as I wanted a none intrusive way of mounting a turbo fan with the ability of removing it if needed.
The printer I am using the CTC i3 Prusa clone. It's a pretty good printer for the price.
The installation is fairly simple.
The air duct its self was not my design though I cannot find the source. If anyone finds it let me know and I'll include credit where it is due.
AirDuct0 is my edited version for ease of removal.
AirDuct1 is the original design.
Duct hole size is 17mm x 12mm.
The settings I used for this are personal preference. I didn't use support for my print but you might want to for the bridged part on the fan bracket.
Infill and resolution are also personal preference.