3D-printing technology has arrived and appears ready to beneficially disrupt every field it touches. Additive manufacturing, better known as three-dimensional or 3D printing, has potential to change the world. However, the full promise of the technology has been stymied due to the high costs and complexities of end-product inspection and quality control. With its pioneering PrintRite3D(R) software, Sigma Labs Inc. (NASDAQ: SGLB) appears to be ready to help unleash the transformative forces of 3D printing and usher in what’s been called the fourth industrial revolution. Aerospace has embraced 3D printing and, for the first time in the industry, Sigma Labs’ software makes possible nondestructive quality assurance during the 3D printing of metal parts, uniquely allowing errors to be corrected in real time. The sector has been searching for just such a validated tool and method to raise quality and cut costs, scale production, and bring 3D printing even more into mainstream manufacturing. Using 3D printing, Pratt & Whitney, a division of United Technologies Corporation (NYSE: UTX), delivered the first entry-into-service jet-engine parts ever produced. Honeywell International Inc. (NYSE: HON) has qualified more 3D-printed aircraft parts with the FAA than any of its rivals, noting that “3D printing technology is real and it’s fantastic.” Achieving design solutions that have been inconceivable in the past, Boeing (NYSE: BA) has applied the technology to airplanes, missiles, satellites and spacecraft. These amazing achievements are made possible by 3D-printing technology, guided and directed by advanced-engineering simulation software from companies such as ANSYS (NASDAQ: ANSS) and now, it appears, significantly accelerated, enhanced and simplified by the quality assurance software of Sigma Labs.