Patent ID: 6927018

Claim:
A method for fabricating an article using photo-activatable building material, the method comprising: depositing a uniform layer of the photo-activatable building material to a preselected surface with an applicator; scanning the layer using a plurality of light-emitting centers to selectively photo-activate the layer of photo-activatable building material in accordance with fabrication of said article; repeating the steps of depositing a uniform layer, with each layer being applied over an immediately previous layer, and scanning each layer with the plurality of light-emitting centers to selectively photo-activate the building material until the article is fabricated; curing the article in a curing oven following fabrication; and automatically transporting the article between said applicator and said curing oven with a transport system; wherein scanning is accomplished using a modified printing cartridge that includes light directing devices located in an orifice plate.