How to Authenticate a 3D-Printed Part: ‘Explode’ and Embed a QR Code

A team at NYU Tandon School of Engineering has found a new way to prove the provenance of a part. Led by Nikhil Gupta, an NYU associate professor of mechanical engineering, the university researchers divided up a QR code and hid the hundreds of pieces throughout the layers of the 3D-printed part.