Well, because such a record wouldn’t sound very good. But that doesn’t mean that this sort of thing can’t be art. Smithsonian.com looks at the experiments people are conducting with music and 3D printing.
On the DIY website Instructables, developer and audiophile Amanda Ghassaei has posted experiments in using 3D printing and laser cutting to create custom records. Her instructable teaches other audiophiles to transform audio files into 33 RPM resin records using a very high resolution 3D printer that creates objects layer by very thin layer.
That’s one way to do it. So is laser etching. The record you see above is made of maple.
Read more here.