I have created a bracket for a 140mm fan to mount it on a PAX cabinet. The model is designed for a wall thickness of 18mm.

There is an optional drilling template for easier positioning of the holes.

There are two versions, one with a magnetic filter and one with a screw-on filter.

Print parts with magnets:
- 1x outer part
- 1x inner part with magnet
- 4x clamping part
Purchased parts with magnets:
- 8x magnet 12x3
- 4x Flat-head screw M4x35mm
- 4x Ruthex M4 (GE-M4x81-001)

Print parts without magnets:
- 1x outer part
- 1x inner part without magnet
- 4x clamping part
Purchased parts with magnets:
- 8x magnet 12x3
- 4x Round-head screw M4x35mm
- 4x Ruthex M4 (GE-M4x81-001)

I used these filters:
https://www.amazon.de/SIENOC-L%C3%BCfterabdeckung-Ultra-feinem-Staubfilter-Magnet-Montage/dp/B07YYWV96W

The model of the NF-A14 is from:
Rahib Muradov
https://grabcad.com/library/noctua-nf-a14-140mm-fan-1