A group of scientists from Lithuania, France and Australia are busy studying 3D printing on a very small scale. As a newly published paper entitled "Optically Clear and Resilient Free-Form μ-Optics 3D-Printed via Ultrafast Laser Lithography" explains, 3D printing is capable of creating functional objects that are impossible to produce via conventional manufacturing techniques, and structures at the miniature, micro and nanoscales are no exception. Read more at 3DPrint.com: https://3dprint.com/162375/3d-laser-...phy-nanoscale/