Feb 15, 2021 MANUFACTURING EXPERT TO SPEAK AT CHAMBER EVENT: Slade Gardner, one of the foremost authorities on additive manufacturing, will speak a the Youngstown Warren Regional Chamber’s 2021 annual meeting March 17 at the Eastwood Event Centre. Gardner has been pioneering industrial additive manufacturing technologies for two decades. He is president and founder of Big Metal Additive, whose products include satellite components, construction machinery repair parts, spacecraft development articles, automotive chassis, a 21-foot diameter unmanned underwater vehicle and a 50-foot ocean capa...