CR-10 Vent Ring

This is a remix of the Ender 3 Vent Ring by Filboyt.
I found the concept interesting, but it did not fit my Creality CR-10S : it was too low.

So I redesigned it from scratch and bring some modifications :
-the ring is 1.5mm higher,
-there's 6 blowers instead of 8,
-blowers are oriented on the exit of the nozzle,
-the air flow is equally divided between groups of 3 blowers

WARNINGS :

Its really close to either heatblock and buildplate.
It will probably not fit with a silicon sock (don't work with mine).
Bed leveling is essential.