(UPDATED)
Re-made the ring from scratch.
1 - Fixed the gap issue between the fan and ring.
2 - Now has 3 more vents than the original, with much less back flow through the fan (still a little, but not bad).
3 - Vents now push air straight out and down.
4 - Increased the overall volume inside.
This is a now re-imagined Vent ring from 3DDP that fits an Ender 3 V3 SE. Must be paired with Sand's lightweight fan shroud found on Printables.
https://www.printables.com/model/637754-ender-3-v3-se-lightweight-fan-shroud
May also work with Muganon's Fan shroud. UNTESTED
Ender3V3SE_VentRing.stl | 306.0KB |