Cooling system for the stock Ender 3 V2 Neo Hotend.
I saw a model like this when I first started 3d printing but could never find it again. So I designed my own. I don't know if it matches up to the one I saw but it definitely worked great for me before I upgraded my toolhead completely.
print settings:
4 walls
40% gyroid infill
.2 layer height
The author marked this model as their own original creation.