I developed a workflow to convert digital audio files into 3D models of standard 12" 33rpm records using Processing. These records were printed on an Objet Connex500 resin printer to a precision of 600dpi with 16 micron z axis steps. Below is a demo of the audio output on a standard record player. A detailed discussion of the development process, code, and downloadable 3D record files can be found on Instructables.
via 3D PRINTED RECORD.