Determining whether using build data will result in generating an object with a generation defect

Patent metadata

Field	Value
Publication number	US-2023391013-A1
Application number	US-202018033336-A
Country	US
Kind code	A1
Filing date	Nov 11, 2020
Priority date	Nov 12, 2020
Publication date	Dec 7, 2023
Grant date	—

Abstract

A method comprises: determining, from build data comprising one or more build elements each of which is a representation of a portion of an object of one or more objects to be generated by an additive manufacturing system, a property of at least one build element of the one or more build elements; and determining, based on the property of the at least one build element, whether generating the one or more objects using the build data would result in generating the object with a generation defect.

First claim

What is claimed is:

1 . A method comprising:
determining, from build data comprising one or more build elements each of which is a representation of a portion of an object of one or more objects to be generated by an additive manufacturing system, a property of at least one build element of the one or more build elements; and determining, based on the property of the at least one build element, whether generating the one or more objects using the build data would result in generating the object with a generation defect.

2 . The method according to claim 1 , wherein the method comprises indicating that the at least one build element would be the cause of the generation defect.

3 . The method according to claim 2 , wherein the method comprises requesting a user confirm whether to proceed with modifying the build data by adapting the at least one build element.

4 . The method according to claim 3 , wherein the method comprises, in response to a confirmation from the user, modifying the build data by adapting the at least one build element.

5 . The method according to claim 2 , wherein the method comprises modifying the build data by adapting the at least one build element.

6 . The method according to claim 2 , wherein the at least one build element comprises a triangle of a polygonal mesh, and wherein the method comprises determining a normal direction of a face of the triangle and/or determining an area of the triangle.

7 . The method according to claim 6 , wherein the method comprises modifying the build data by adapting the triangle of the polygonal mesh by flattening the triangle of the mesh so that the face normal direction of the triangle is parallel with the Z-direction or by removing the triangle from the polygonal mesh.

8 . The method according to claim 2 , wherein the at least one build element comprises a texture map, or texture map portion, and wherein the method comprises determining the number of texels that are between UV coordinates of each edge of a triangle of a polygonal mesh.

9 . The method according to claim 8 , wherein the method comprises modifying the build data by adapting the texture map, or by adapting the texture map portion, by reducing the resolution of the texture map, or the texture map portion.

10 . The method according to claim 2 , wherein the at least one build element comprises a beam in a beam lattice, and wherein the method comprises determining a length of the beam from the beam lattice.

11 . The method according to claim 10 , wherein the method comprises modifying the build data by adapting the beam by removing the beam from the beam lattice or by making the beam larger.

12 . The method according to claim 2 , wherein the at least one build element comprises a triangle of a first polygonal mesh from a plurality of polygonal meshes, and wherein the method comprises determining if the triangle intersects with a triangle from a second polygonal mesh from the plurality of polygonal meshes.

13 . The method according to claim 12 , wherein the method comprises modifying the build data by adapting the triangle by merging the first polygonal mesh with the second polygonal mesh or by separating the first polygonal mesh from the second polygonal mesh.

14 . A non-transitory machine-readable storage medium comprising instructions executable by a processor, the storage medium comprising:
instructions to determine, from build data comprising one or more build elements each of which is a representation of a portion of an object of one or more objects to be generated by an additive manufacturing system, a property of at least one build element of the one or more build elements; and instructions to determine, based on the property of the at least one build element, whether generating the one or more objects using the build data would result in generating the object with a generation defect.

15 . An additive manufacturing system comprising:
a processor; and a non-transitory machine-readable storage medium encoded with executable instructions, the storage medium comprising instructions which, when executed by the processor, control the processor to:
determine, from build data comprising one or more build elements each of which is a representation of a portion of an object of one or more objects to be generated by an additive manufacturing system, a property of at least one build element of the one or more build elements; and
determine, based on the property of the at least one build element, whether generating the one or more objects using the build data would result in generating the object with a generation defect.

Assignees

• Hewlett Packard Development Co

Inventors

• Gonzalez Martin Sergio
• Carruesco Llorens Alex
• Roca Vila Jordi

Classifications

• B29C64/386 Primary

  Data acquisition or data processing for additive manufacturing · CPC title

• B33Y50/02

  for controlling or regulating additive manufacturing processes · CPC title

• G06F30/10

  Geometric CAD · CPC title

• B33Y50/00

  Data acquisition or data processing for additive manufacturing · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title