Opinions expressed by Entrepreneur contributors are their own. Amazon Fire Phone, Google Glass, New Coke and Nintendo’s Virtual Boy: What do all these products have in common? They didn’t sell.

“The clients we work with whose parts must meet various certifications – UL, FAA, and MIL-spec, among others – need to have a ‘real’ part to test against their real-world challenges. RPM facilitates ...

Anaheim, Calif. — Mack Prototype Inc., a subsidiary of Mack Molding Co., has invested $150,000 in a new 3D printer to meet demand for large prototypes and production-grade parts. "One of the big gaps ...

Vertical Aerospace has commenced ground testing a new, advanced full-scale prototype of its VX4 eVTOL air taxi, following a crash involving its initial prototype last year. The new VX4 prototype ...

What appears to be a Porsche 718 Boxster electric prototype was spotted testing ahead of the unveiling of the next generation of the sports car. For those unfamiliar with Porsche’s lineup, the 718 ...