The file 'Nema 17 Cooling Fan Duct 3D Printer Model' is (SLDPRT,STEP,STL) file type, size is 502.3KB.
I noticed most of the air was being pushed back instead of around the stepper motor with u/chrismagno's design, so I made the fan offset at a greater distance from the stepper with a directional duct to move more air around the motor. It seems to work more efficiently now because I cannot feel air flowing backwards as it did before.
Nema_17_40mm_Fan_Duct.SLDPRT | 646.0KB | |
Nema_17_40mm_Fan_Duct.STEP | 381.7KB | |
Nema_17_40mm_Fan_Duct.STL | 292.3KB |