Method for forming objects
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United States of America Patent
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app pub date -
Mar 16, 2007
filing date -
Oct 27, 2003
priority date (Note) -
Abandoned
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Abstract
A method for forming objects includes a step of spreading a base material layer on a surface, a step of initiating a first physical or chemical change of the base material layer by exposure to one of ultra violet beams or infra-red beams so as to become a gelled material, a step of initiating a second physical or chemical change by application of a laser beam to selected areas of the gelled base material layer to make each selected area to become hardened in mature, a step of repeating steps 1-3 a pre-determined number of times, each newly added base material layer being laminated on a preceding layer to form a plurality of stacked layers, the hardened selected areas of the plurality of stacked layers defining a solid object, and a step of removing the portions of base material layers remaining in gelled form to obtain a final prototype.
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