The 3D printing page always attracts a regular stream of readers so I thought I'd flag this article from HP.

Digital manufacturing with 3D printing has the potential to disrupt the $12 trillion global manufacturing sector, said Timothy Weber, HP vice president and general manager of 3D materials and advanced applications.

HP began shipping its model 4200 Multi Jet Fusion units with Voxel-level 3D printing, that has a 21-micron resolution.