Tim Caffrey is a senior consultant at Wohlers Associates. He is a principal author of the Wohlers Report, an annual worldwide study of the additive manufacturing and 3D printing industry. Caffrey’s career in additive manufacturing (AM) began in 1992 at Boeing’s Propulsion Laboratory. He directed the company’s first in-house AM facility, which provided AM parts throughout the corporation. In 1996, Caffrey managed the AM operation of Plynetics Express in Schaumburg, Illinois, which had, at the time, the largest installed base of AM systems in the world. Caffrey’s experience includes 24 years in professional writing and editing, maintenance procedures and operational tests at Boeing, engine case repair procedures at Pratt & Whitney, advertising copywriting at Walmart’s corporate headquarters, and consulting reports. He holds a bachelor of science in mechanical engineering from the University of New Mexico. He and his wife live in Fayetteville, Arkansas, and have 3 adult children.