Polylactic acid, or PLA, is the most common 3D printing filament, and it's the easiest to use. Unlike most plastics, it's made from corn starches so it's nontoxic and, in theory, compostable ...

Researchers developed a 3D printing-based method to tailor metal alloys by composition and structure, creating stronger, ...

The 3D printer part takes on appearance and some of the characteristics of those materials. With specialized 3D printers, it’s possible to create objects in a variety of materials, even cheesecake.

That’s where 3D printing has a niche.” So how, exactly, does a 3D printer work? What is 3D printing? Consider the type of printing most people are very familiar with: Printing with ink on paper.