3D printing
was proposed around 1981 when the first patent for a printer of this type was
registered in Japan, but it was not until 1984 when the American inventor
Charles Hull made the concept of three-dimensional printing a reality.
3D printing, however, did not become popular until the 21st century. Today, a 3D printer can print impressive models using plastic filaments deposited by layers.
However, can a 3D-printer print food?
