This project was born out of a necessity for active cooling on a Pi Zero 2 W I'm using to create a DIFFERENT Project, I'm tentatively calling the "Secure Frame", an open source photo frame kit that can interface with Dropbox, Owncloud, or just local NAS storage instead of being tethered to a service that's not guaranteed to last longer than 2 -3 years.
I was noting that the Pi Z2w was getting hot, REALLY hot, since the processor was constantly in use to drive the graphics output, something the PiZ2w probably wasn't quite designed for. Adding heat sinks only got me so far, and that's when I realized I needed to add in active cooling.
Since I haven't actually designed a board in a while, especially in Eagle, this was really fun and frustrating, trying to get the layout just right, which I feel like I did, for this project.
Does that schematic have the fan connector labeled for 3A / 250V? If it were, I think this would introduce more heat issues than it solves :)