Noctua engineers fine tuning different materials to get the impeller as close to hub as possible with sub-mm tolerances.

#PCMasterRace takes the belt sander to it.

But why print this in the first place? A standard computer vent costs what, less than 20? Probably way cheaper even, if you buy non brand. Can’t see how the materials, time and power consumed isn’t more expensive than that

E: somehow thought myself in a 3d printing community, my bad.

More Airflow. I like it.