Fully functional loudspeaker is 3-D printed

Cornell researchers in Hod Lipson’s Creative Machines Lab have 3-D printed a working loudspeaker, seamlessly integrating the plastic, conductive and magnetic parts, and ready for use almost as soon as it comes out of the printer.
It’s an achievement that 3-D printing evangelists feel will soon be the norm; rather than assembling consumer products from parts and components, complete functioning products could be fabricated at once, on demand.

More info at http://www.news.cornell.edu/stories/2013/12/fully-functional-loudspeaker-3-d-printed

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3D Printed Record

I’ve created a program for converting digital audio into a 3D model of a 33rpm record and 3D printed some functional prototypes.  These records play on standard turntables with regular needles, just like any vinyl record.  The audio on the records is very low resolution, it has a sampling rate of 11kHz (a quarter of typical mp3 audio) and 5-6bit resolution (less than one thousandth of the resolution of typical 16 bit audio), but the result is easily recognizable.  Find my Processing code, 3D model downloads, photos, and a detailed discussion of the design process on Instructables:
instructables.com/id/3D-Printed-Record/