Customizable fan mount for computer fans

I used this to mount a Noctua fan to the inside of a broken wine fridge that I'm using as a 3D printer enclosure.

The attached 3mf is for an 80mm fan, but there's also an F3D model that is customizable. You could make it any size: 40mm, 60mm, 80mm, 92mm, 120mm, 140mm, 200mm, whatever-mm

The grille in the photo is from this design https://www.printables.com/model/276025-80mm-fan-cover-high-flow (though I clipped the edges to 45 degrees).

I used M3 pan-head screws to attach the fan to the mount and then sheet metal screws to mount the whole thing to the enclosure.