The file '120mm Fan Duct 3D Printer Model' is (stl) file type, size is 17.9KB.
This is a simple 120mm fan air duct. Slips over the fan to direct the air.
I used this to direct air from an air-cooled CPU straight to the rear exhaust fan.
I have no proof it helps, but I was inspired by that "I fixed PC cooling" youtube video. :P
120Duct.stl | 59.5KB |