After nearly 30 years in the 3D printing industry, Jim Bredt has already left a significant, commercial imprint on the field, yet his work on the industrial side of the business is just powering up. A Ph.D. mechanical engineer from MIT, Bredt is best known as a co-founder of Z Corp., which launched in 1994 and had amassed one-fourth of the 3D printing market share before it was acquired by 3D Systems in…