RAPID + TCT Event News RAPID + TCT 2019 Showcased Continued Adoption and Growth of Additive Manufacturing By Joris Peels, 3DPrint.com Nearly 9,000 manufacturing professionals from around the world converged in Detroit for this year’s RAPID + TCT, North America’s most influential additive manufacturing (AM) event. The event, which took place May 20-23, was the largest, most comprehensive offering yet.