I've got an Axial Wraith that I built a long time ago and have gone through a few variations of FPV systems.
I recently swapped out a Caddx Vista for a Walksnail V2 because of the really great night vision on the Pro Camera. However, a surface vehicle doesn't generate the airflow like a quad does, so I needed to install a fan to help keep it cool
Here is a link to the fan, but any 30mm fan with 24x24 will do.
This model also uses short M3 threaded inserts.
https://www.prusa3d.com/product/threaded-inserts-m3-short-100-pcs/
I used 4 of the 6mm screws that come with the walksnail to attach this to the Walksnail body.
I used 4 M3x12mm screws to attach the fan to this design.
I printed this on a MK3S+ using PETG
The author marked this model as their own original creation.