This is a re-upload from billy on Printables (https://www.printables.com/model/364688-nzxt-h510-elite-front-mesh-panel)

These models are not mine I just uploaded it to printables because I thought others might search for something like this.

Notes from the creator: I use superglue to assemble ill add a picture so you can see where everything goes I use 10x1mm magnets I got on amazon and you can buy a mesh filter and cut it to size for some case filtration.

for the inside pieces I use 2 walls, 0 bottom and top layers 28% cubic infill for the pattern (you can experiment with whatever you'd like) and the bars i use standard settings making sure the holes use supports and face down. Print at 99.3% scale.