NASA has been exploring the power of additive manufacturing since the late 1990s. Initially, they were 3D printing with plastics, and in the early 2000s, they began using metal for prototypes. By the ...
and traditional paper printers Credentials 6 years working professionally in the 3D printing space / 4 years testing consumer electronics for large websites.
To be clear, 3D printing modern gadgets is not at all what the MIT researchers were going for. In fact, they didn't even have semiconductors on their minds when they figured this out.