Anycubic Predator Fancase Steppercooling

I was looking for a good option for driver cooling. Since the original was too loud and the noctua too weak, I had the idea with a big fan in the lid. So I designed this housing and then built it into the lid. The fan has 12V so you still need a stepdown converter. I had to increase the distance to the housing with spacers because the fan has rattled so.

Link to the fan i used:
https://www.amazon.de/Phobya-G-Silent-1800rpm-120x120x15mm-Luftk%C3%BChlung/dp/B00COLATPO/ref=sr_1_7?__mk_de_DE=%