Forsyth Capital Investors, a Clayton private equity firm launched with a $100 million investment from Barry-Wehmiller Cos. Inc., buys 75 percent of Machine Solutions Inc, a Flagstaff, Ariz.-based provider of process automation and testing equipment for the medical device industry which is led by co-founders Dan Kasprzyk, who serves as CEO, and Tom Motsenbocker, chief technology officer. Machine Solutions Inc, with $20 million in annual revenue and 80 employees, specializes in automating the process for making stents and balloon catheters, mostly for minimally invasive coronary surgeries.