Energy & Industry / Manufacturing & Construction

3D Printing (Additive Mfg)

Chuck Hull files for stereolithography in 1984 - objects are built layer by layer from a file.

In 1984 Hull cured liquid resin layer by layer with UV light; the patent followed in 1986 and he founded 3D Systems. From the 1990s laser sintering and metal printing arrived, in 2005 the open RepRap project. Geometries that cannot be cast or milled become producible.