3d printing
1.INTRODUCTION New production technologies like 3D printing and other adaptive manufacturing technologies have changed the industrial manufacturing process, often referred to as next industrial revolution. Such Computing Physical Production Systems combine virtual and real world through digitization, model building process simulation and optimization. It is commonly understood that measurement technologies are the key to combine the real and virtual worlds. This change from measurement as a quality control tool to a fully integrated step in the production process has also changed the requirements for 3D metrology solutions. At the same time it is obvious that these processes not only require more measurements but also systems to deliver the required information in high density in a short time. Here optical solutions including photogrammetry for 3D measurements have big advantages over traditional mechanical CMM’s. Accepted tool or exotic niche. As late as