Additive manufacturing: an introduction to (almost) all additive technologies

Additive manufacturing or, for many peoples, 3D printing could be done with a variety of materials and a lot of different technology. Did you know that the American Society for Testing and Materials (ASTM) have class all additive technologies in 7 categories?

Would you like to know what are those technologies and how they work, what could they do and what materials could be use? Yes? Read this article on

Roses picture is from adafruit, CC licence, source.