Ender 3 v3 SE 4010 Fan Honeycomb Diffuser

Fan shroud diffuser with better airflow, and compatible with Sand's Lightweight Fan Shroud.

Like many of you, I experienced the shrieking death of the stock 2510 cooling fan on my Ender 3 V3 SE. I liked TheDude's fan shroud, but found it doesn't play nice with Sand's part cooling fan shroud, in mounting on the print head. 

I've re-worked the diffuser so it can be mounted at the same time as the part-cooling fan mount, be printed without support, and have a less restrictive fan grill, courtesy of mightynozzle. 

Printed at 0.2mm resolution, with a 0.4mm nozzle, 2 walls, 20% infill. It doesn't need supports, but a brim might help with bed adhesion at the corners; if you get too much lifting, you'll have issues installing the fan. The 40x10mm fan slides in from the bottom and friction fits. I have the fan installed so it blows air out the front. I printed in Inland Tough PLA, because it's what I had, and haven't had problems with sagging yet. 

It screws into the side of the stock extruder stepper motor using m3 screws; I used m3x6mm cap-head screws. I ordered these fans from Amazon; $10.99 for a six-pack. They didn't come with the right connectors, so I bought a pack of the correct Micro JST connectors, and did a quick solder job to marry the fan with the correct pigtail. Be aware the pin-out on the Ender's print-head is reversed, relative to the wire colors of these pigtails.

4010 24V fan 6 pack: https://www.amazon.com/gp/product/B09YY79W86/

Micro JST pigtail 10 pack: https://www.amazon.com/gp/product/B07FP2FCYC/

Sand's Lightweight fan shroud: https://www.printables.com/model/637754-ender-3-v3-se-lightweight-fan-shroud