Until recently, most manufacturing processes have been 'subtractive' in that matter is removed (e.g., scraped, dissolved, turned, machined) from a substance in order to produce the desired product. 3-D printing turns traditional manufacturing on its head in that it uses an 'additive' process. Similar to laser and inkjet printers, 3-D (three-dimensional) printers produce pieces by depositing, or adding, layers of material plastic, polymer filaments, metals, and even foodstuffs until the desired product is realized. This means that the creation and production of 'one-offs' is not. only easy, it is also economically viable. 3-D printers are becoming ever more affordable, and it is not hard to envision them being as common in most homes in the near future as their two-dimensional counterparts are today. This article presents a 3-D printing primer for non-technical managers. It then considers the profound impact that 3-D printing will have on firms of all kinds as well as on individual consumers. In addition, it raises the substantial questions that 3-D printing will pose to policy makers from both intellectual property and ethical standpoints. (C) 2014 Kelley School of Business, Indiana University. Published by Elsevier Inc. All rights reserved.
