This is a remix of the Red Squirrel fan housing. I chose to modify this one as I wanted a low profile fan shroud. I had to add 2 mm to the back face in order for the 5015 blower fan to clear the carriage plate (Ender 5 plate is way wider than the ender 3). I also integrated the BL-touch mount into the part, as I thought the bolt on ones were cludgy.
I also adjusted the shrouding around the hot-end heatsink to fit a 2-in-1-out hot-end on aliexpress. It sticks out about 2 mm further than the OEM Creality setup.
I may make some of the required edits to make this version fit an Ender 3 as well, and I will post that one with the integrated BL touch mount as well.
This prints with supports (tree supports w/ 0.3 mm clearance work well on my setup), and you need to print with ABS or another high temp suitable material. The fit is pretty tight, and the upper bolt is a pain in the ass (need to use the short end of an L hex wrench to install), but I am satisfied with it in the end.
The author remixed this model.