NEW YORK—Additive manufacturing has reached many food markets, so it is no surprise that companies like Hershey, Nestlé, Mars Inc. and Mondelez International have been experimenting with 3D-printed chocolate for the last few years to bring more creativeness and innovation to the industry.

ANN ARBOR, MI—Engineers at the University of Michigan have developed a new light-based additive manufacturing process that is up to 100 times faster than conventional 3D printing techniques.

PALERMO, Italy—The world's first 3D-printed sailboat was recently unveiled here. It was designed and produced by OCore, a start-up company dedicated to harnessing new manufacturing technologies.

NOTTINGHAM, England—A team of Nottingham Trent University researchers are 3D printing replica human vertebrae that can act and feel like real bone tissue to help train spinal surgeons before they go into live operations.

SUNNYVALE, CA—Lockheed Martin has become the first company to achieve UL 3400 certification for additive manufacturing.

CHICAGO—HP Inc., the largest maker of personal computers, unveiled its Metal Jet printer at the IMTS show here on Monday. Early customers include the engineering firm GKN Plc, which expects to print millions of production-grade Metal Jet parts for customers as early as next year.