Marshfield woman, legally blind, says 3-D printing 'provoked the innovator in me'

MARSHFIELD - Tia Bertz was thunderstruck the moment she learned about 3-D printers. It happened about four years ago when she was a student at the Wisconsin Center for the Blind and Visually Impaired in Janesville. One of her teachers set up a 3-D printer in his classroom and demonstrated it for ...