3D Hubs' first Global #3DprintingDay is coming up on "3D"--or December 3, 2015. More than 370 cities from all over the world are participating by opening up their 3D Hubs for round the clock showcases and demonstrations of 3D printing technology. Read more at 3DPrint.com: http://3dprint.com/108050/3d-hubs-global-3dprintingday/