Snapmaker Original - Controller Fan Housing

I've had Snapmaker Original for a while now and get excited about 3D printing every time. Due to the very intense noise, the controller fan should be replaced by a quiet model, in my case the Noctua 40mm NF-A4x10 FLX. I had read in various forums but found nothing really nice or in the Snapmaker forum there was already a similar project, but the Thingiverse files were no longer online.
So I had to do it myself

Special feature:
The Snapmaker uses 24V DC to drive its fans. The Noctua fan I use is a 12V DC model (unfortunately not available as 24V version).
To use it, I ordered the smallest available step-down converter from Amazon and soldered it into the connection cable.

The fan is mounted without screws, as well as the small original "noise bolt". Simply push over the 4x mounting cone until the stop. The adapter I fixed during final assembly with a few adhesive dots inside the original housing.

What can I say, the noise is gone. I should have implemented this much earlier