If you thought downloading music from the internet had nothing new to offer, think again. One of the tech editors over at Instructables -- Amanda Ghassaei -- has put a new twist on the digital delivery of music by 3D printing a record. Ghassaei developed a technique that converts digital audio files into 3D printable (33 rpm) grooved plastic discs, that actually play on regular turntables. Not only that, she printed some functioning prototypes as proof of concept. The printer used was relatively high-resolution, with 600 dpi on the x/y axes, and layers just 16 microns thick
