Door vent hole cover

Simple cover for a door ventillation hole, e.g for bathrooms.
For each hole you'll need two, one for the inside, and another one for the outside of the door, but **that should be mirrored**!

The minimum door width is 4cm, alternatively the model can be scaled / cut, but then the spirals might not match up.
The required hole diameter is 41mm (that's what I could by at the local store, so ...).

I started thinking about an interlocking mechanism, but it was just so much easier to superglue it instead... it's not going to be removed anytime soon anyway.

I printed this using a 0.6 nozzle.
The width of the curvy part in the middle is optimized for this layer height & nozzle diameter combo, so that it just extrudes 3 lines, one in the middle, then the two perimeters.