DC-DC Charger Cooling - Van Build Series

I decided to do a little experimenting on cobbling together a solution to help keep my DC-DC charger a bit cooler while operating and hence, a bit more efficient. After a bit of trial and error, I think I've got a pretty good (and reasonably inexpensive) solution!
I hope this helps some folks; please feel free to ask questions in the comments.
3D model for the fan frame: www.thingiverse.com/thing:527...
Products used in this video:
30mm 12v computer fans: www.amazon.com/dp/B072L3WC22
Thermostat: www.amazon.com/dp/B09J4VC7F3
Buck converter: www.amazon.com/dp/B07F24WGBB
4-pin automotive relay: www.amazon.com/dp/B07XFZNVRR

[@tompiperson4793]

Nice little set up. I need to get a 3D printer. Did you use any special plastic?

[@wanderingzythophile9083]

No, just regular ABS plastic. Was handy that the setup at the shop I work at conveniently had "Victron blue", hah.