Method for generating and building support structures with deposition-based digital manufacturing systems
First Claim
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1. A computer-implemented method for generating data that lowers a total angular deflection of a head in a deposition-based digital manufacturing system, the method comprising:
- providing vertices defining a boundary polygon for a layer of a support structure;
generating vertices of a convex hull polygon based on the vertices of the boundary polygon;
offsetting the vertices of the convex hull polygon inward to provide an offset convex hull polygon;
offsetting the vertices of the boundary polygon outward to provide an offset boundary polygon; and
generating an intersection boundary polygon having vertices, wherein at least a portion of the vertices of the intersection boundary polygon are selected from the group consisting of a vertex that is located at an intersection of the offset boundary polygon and the offset convex hull polygon, a vertex of the offset boundary polygon located inside of the offset convex hull polygon, a vertex of the offset convex hull polygon located inside of the offset boundary polygon;
calculating a total angular deflection associated with moving the head along the intersection boundary polygon;
calculating a speed of movement associated with moving the head; and
wherein generating the intersection boundary polygon for movement associated with the head is performed using the calculated angular deflection and speed of movement associated with moving the head such that the total angular deflection associated with moving the head along the intersection boundary polygon is lower than a total angular deflection associated with moving the head along the boundary polygon.
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Abstract
A method for generating data for a support structure to be built with a deposition-based digital manufacturing system, the method comprising generating a convex hull polygon based on a boundary polygon of a layer of the support structure, offsetting the convex hull polygon inward, offsetting the boundary polygon outward, and generating an intersection boundary polygon based at least in part on the offset boundary polygon and the offset convex hull polygon.
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Citations
7 Claims
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1. A computer-implemented method for generating data that lowers a total angular deflection of a head in a deposition-based digital manufacturing system, the method comprising:
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providing vertices defining a boundary polygon for a layer of a support structure; generating vertices of a convex hull polygon based on the vertices of the boundary polygon; offsetting the vertices of the convex hull polygon inward to provide an offset convex hull polygon; offsetting the vertices of the boundary polygon outward to provide an offset boundary polygon; and generating an intersection boundary polygon having vertices, wherein at least a portion of the vertices of the intersection boundary polygon are selected from the group consisting of a vertex that is located at an intersection of the offset boundary polygon and the offset convex hull polygon, a vertex of the offset boundary polygon located inside of the offset convex hull polygon, a vertex of the offset convex hull polygon located inside of the offset boundary polygon; calculating a total angular deflection associated with moving the head along the intersection boundary polygon; calculating a speed of movement associated with moving the head; and wherein generating the intersection boundary polygon for movement associated with the head is performed using the calculated angular deflection and speed of movement associated with moving the head such that the total angular deflection associated with moving the head along the intersection boundary polygon is lower than a total angular deflection associated with moving the head along the boundary polygon. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification