Phillip Olla Digital Object Identifier 10.1109/MTS.2015.2461197 Date of publication: 16 September 2015 74 1932-4529/15©2015IEEE T hree-dimensional (3D) printing is the practice of creating a physical object from a digital model. This is achieved by using an additive process of laying down successive thin layers of a material. It is not completely clear what impact 3D printers will have on altering our society, but there is no denying that a transformative social, economic, and technical 3D printing revolution is underway. Our world is being 3D printed all around us, creating unforeseen opportunities and challenges for entrepreneurs [29], policy makers, and society at large. IEEE TEchnology and SocIETy MagazInE ∕ september 2015 EGAL/ISTOCK Opening Pandora's 3D Printed Box