Embodiments of the invention are directed to a system and method to fabricate three-dimensional objects, layer by layer, by selectively dispensing material from a printing head onto a transfer platform to form a cross-sectional layer of the object that has a pre-determined non-uniform surface. Each layer...http://www.google.com/patents/US8147910?utm_source=gb-gplus-sharePatent US8147910 - Method and apparatus for three-dimensional printing
