Method and system for three-dimensional fabrication
AssigneeStratasys, Inc.
InventorsEliahu M. Kritchman, Eduardo Napadensky
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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.
Claims20
A method of three-dimensional fabrication of an object, comprising:
- forming a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object, and
- rescaling at least one layer of said plurality of layers along at least one direction so as to compensate for post-formation shrinkage of said layer along said at least one direction, wherein said rescaling is selected based on a monotonically decreasing function of a formation time of a layer.
A system for three-dimensional fabrication of an object, comprising:
- a three-dimensional fabrication apparatus, configured for forming a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object;
- said three-dimensional fabrication apparatus having a controller configured to ensure that at least one layer of said plurality of layers is rescaled along at least one direction so as to compensate for post-formation shrinkage of said layer along said at least one direction, wherein said rescaling is selected based on a monotonically decreasing function of a formation time of a layer.
Dependencies are inferred from the claim text.