Method and system for three-dimensional fabrication
AssigneeStratasys, Inc.
InventorEduardo Napadensky
Life of this patent
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Abstract
A method of three-dimensional fabrication of an object is disclosed. The method comprises: forming a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object, at least one layer of the plurality of layers being formed at a predetermined and different thickness selected so as to compensate for post-formation shrinkage of the layer along a vertical direction. In various exemplary embodiments of the invention spread of building material of one or more layers is diluted at least locally such as to maintain a predetermined thickness and a predetermined planar resolution for the layer.
Claims14
A method of fabricating a three-dimensional object, comprising:
- forming using a three-dimensional printer a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object,
- wherein for at least one layer of said plurality of layers, said formation of said layer comprises:
- forming a central region surrounded by a peripheral region, wherein a thickness of said central region is lower than a thickness of said peripheral region, and
- leveling at least said peripheral region by removing material at least from said peripheral region so as to straighten at least said peripheral region.
A method of fabricating a three-dimensional object, comprising:
- forming using a three-dimensional printer a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object,
- wherein for at least one layer of said plurality of layers, said formation of said layer comprises leaving vacant locations in at least one interior region of said layer while allowing building material to flow into said vacant locations, and
- wherein said at least one interior region is characterized by a distance from a closest exterior surface of the object which is above a predetermined threshold distance of about 2 millimeters.
Dependencies are inferred from the claim text.