FLSUN V400 Power Supply Silent Mod Noctua 60x25

The original setup is quite loud as the airflow from the fan is max disturbed by the case itself. There are people that just cut the metal and make a big hole...that should work to but I like to make changes reversible.
I decided to put in a Noctua A6 60x25 12V which is to high (25mm vs. 15mm original) and would not fit the original housing. Additionally it needs a stepdown module as the powersupply brings 24V.

I ended up drawing a new lid for the power supply with 6mm more hight, opened up the fan hole completely.

Therefore the whole unit needed to move 9mm inside the bottom housing why I made the distance part. Due to this there are 4 M4x18/M4x20 screws needed.

The lit itself fits snuggly with the original screws.
 

I know that electrically it is not recommended to open the metal enclosure by a plastic lid/part.

So every change is on your OWN RISK!
 

ALSO THERE IS A BIG DANGER REGARDING THE CAPACITORS THAT CAN HOLD THE VOLTAGE FOR A LONGER TIME! SO BE CAREFUL AND ONLY PUT YOUR HAND ON IT IF ITS UNPLUGGED.

I printed with PETG but I guess PLA should be fine too.
No supports needed.