Until recently, the researchers in Somerville had no way of knowing the machinists in Westfield exist. That's where Adam Rodrigues, manufacturing fellow for the Greentown Springfield Manufacturing Initiative, comes in. He started the new job Jan. 3. It's part of a one-year pilot program funded by $150,000 in grant money from the Davis Foundation, MassDevelopment and the Massachusetts Center for Clean Energy. His job is part of a partnership announced last year between Greentown Labs and the Springfield Technology Park. His office is in the technology park on Federal St.