(Image credit: Noctua) 3D-printin' folks and hobbyists of various stripes can rejoice. The highly-regarded folks at Noctua have released pitch-perfect CAD models of many of the company's fans, including the NF-A12x25 G2, which currently ranks at the top of our best PC fans roundup. Go deeper with TH Premium: CPU Some folks may find it concerning that Noctua would be freely offering their proverbial golden goose, but the CAD files don't include the internal frame structure, and the fan impeller geometries have been slightly tweaked, as forms of IP protection. Article continues below It bears remarking that high-precision manufacturing and tight tolerances are one key reason why Noctua's fans are so effective (and pricey, too), and that's a feature that is exceedingly hard to simulate in a home laboratory and, we'd wager, most factories. If nothing else, you'll be able to replace some parts of an existing fan, or use Noctua's files as a basis for creating your own system fans.…