The file 'Custom Fan Duct For Printrbot Play Replacement Cover 3D Printer Model' is (stl) file type, size is 1.8MB.
I didn't like the way the recommended fan duct aligned (or more accurately didn't) with the print head, so I did a number of custom designs until I landed on one that got the airflow right where I wanted it.
Custom Fan Shroud 6 uses an angled exit opening so the shape can be a bit straighter. This is the one I use and the one in the picture.
Custom Fan Shroud 5 has the exit opening more parallel to the fan but has to shift to the side more.
Custom_Fan_Shroud_5.stl | 6.7MB | |
Custom_Fan_Shroud_6.stl | 6.7MB |