The present invention is directed to three-dimensional printing material
systems and method, and an article made therefrom. The method of the
present invention includes building cross-sectional portions of a
three-dimensional article, and assembling the individual cross-sectional
areas in a layer-wise fashion to form a final article. The individual
cross-sectional areas are built by using an ink-jet printhead to deliver
a fluid to a particulate material that includes particulate material.