Apparatus incorporating a movable dispensing head provided with a supply of material which solidifies at a predetermined temperature, and a base member, which are moved relative to each other along "X," "Y," and "Z" axes in a predetermined pattern to create three-dimensional objects by building up material...http://www.google.fr/patents/US5121329?utm_source=gb-gplus-shareBrevet US5121329 - Apparatus and method for creating three-dimensional objects
Apparatus and method for creating three-dimensional objects
