This cooler was designed for my Ender 5 Plus with a BL touch and a Phaetus BMS Dragonfly hotend. The Dragonfly is just ever so longer that most hotends for the Ender 5 Plus so I wasn't getting proper parts cooling. The duct is very loosely based on the AYF Minimal duct. 
It uses the standard 4010 hotend cooling fan and a 5015 axial duct fan.
With the current design you will need to drill a hole for the 5015 fan for mounting otherwise all standard hardware is used.

This is still a work in progress but will fit and function as posted.

I am wanting to adjust the outlet of the ducts and see if I can increase the air flow. 
If any improvements are made I will update the model.

05/05/23 added 325 cooler. I reduced the outlet size of the ducts, have moved them so they are more centrally located to the nozzle, and slightly angled the ducts down to get better parts cooling.  Recommend printing the cooler laying on its' back with bed supports only. The 325 cooler is pictured on my Ender 5 Plus.