Seam concealment for three-dimensional models
DCFirst Claim
1. A method for building a three-dimensional model with an extrusion-based digital manufacturing system, the method comprising generating a contour tool path that defines an interior region of a layer of the three-dimensional model, wherein the contour tool path comprises a start point, a stop point, and a step-over arrangement between the start point and the stop point, wherein the step-over arrangement is oriented at a non-right angle, wherein at least one of the start point and the stop point is located within the interior region of the layer, and wherein the step-over arrangement reduces surface porosity for the three-dimensional model.
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Litigations
1 Petition
Accused Products
Abstract
A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
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Citations
18 Claims
- 1. A method for building a three-dimensional model with an extrusion-based digital manufacturing system, the method comprising generating a contour tool path that defines an interior region of a layer of the three-dimensional model, wherein the contour tool path comprises a start point, a stop point, and a step-over arrangement between the start point and the stop point, wherein the step-over arrangement is oriented at a non-right angle, wherein at least one of the start point and the stop point is located within the interior region of the layer, and wherein the step-over arrangement reduces surface porosity for the three-dimensional model.
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10. A method for building a three-dimensional model with an extrusion-based digital manufacturing system, the method comprising:
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receiving a digital representation of the three-dimensional model; slicing the received digital representation into a plurality of layers; generating a contour tool path based on a perimeter of a first layer of the plurality of layers, wherein the generated contour tool path defines an interior region of the first layer; adjusting a start point of the contour tool path and a stop point of the contour tool path to locations within the interior region to provide a modified contour tool path; and extruding a material in a pattern based on the modified contour tool path to form a perimeter of the extruded material for one of the layers of the three-dimensional model, the perimeter of the extruded material comprising a start point and a stop point, and defining an interior region of the layer of the three-dimensional model, wherein the start point and the stop point of the perimeter of the extruded material are each located within the interior region of the layer of the three-dimensional model. - View Dependent Claims (11, 12, 13, 14)
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15. A method for building a three-dimensional model with an extrusion-based digital manufacturing system, the method comprising:
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generating a tool path that comprises; a start point for the tool path; a stop point for the tool path; a contour tool path extending from the start point and based on a perimeter of a layer of the three-dimensional model, wherein the generated contour tool path defines an interior region of the layer; and an interior raster path extending from the contour tool path within the interior region of the layer, wherein the interior raster path ends at the stop point; and extruding a material in a pattern based on the generated tool path to form the perimeter and at least a portion of the interior of the layer of the three-dimensional model. - View Dependent Claims (16, 17, 18)
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Specification