Processing slice data

Patent metadata

Field	Value
Publication number	US-2016349724-A1
Application number	US-201415111127-A
Country	US
Kind code	A1
Filing date	Jul 31, 2014
Priority date	Jan 16, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

A system is provided for processing slice data representing a slice of a three-dimensional object to be generated by an additive manufacturing system. The system includes a processor to perform, when the additive manufacturing system is to generate the slice, a transformation on the slice data based on characteristic data of the additive manufacturing system, the slice data derived from three-dimensional object design data.

First claim

1 . A system for processing slice data representing a slice of a three-dimensional object to be generated by an additive manufacturing system, the system comprising a processor to:
when the additive manufacturing system is to generate the slice, perform a transformation on the slice data based on characteristic data of the additive manufacturing system, the slice data derived from three-dimensional object design data; and based on the transformed slice data, cause the additive manufacturing system to generate the slice.

2 . The system of claim 1 , wherein the transformation is a geometrical transformation on the slice data to compensate for distortions introduced by the additive manufacturing system during the generation of the three-dimensional object.

3 . The system of claim 1 , wherein the transformation is to add sacrificial structure data to the slice data, the sacrificial structure data representing at least a part of a sacrificial structure that is not intended to form part of the three-dimensional object when generated.

4 . The system of claim 1 , wherein the transformation is to incorporate virtual object data into the slice data, the virtual object data based on object property data.

5 . The system of claim 1 , wherein the transformation is to combine the slice data representing the slice with other slice data representing another slice to generate combined slice data representing a combined slice.

6 . The system of claim 1 , wherein the transformation is to divide the slice data representing the slice to generate first and second divided slice data respectively representing a first and a second divided slice.

7 . The system of claim 1 , wherein the transformation is to modify a density of an agent defined by the slice data to be delivered on a layer of build material.

8 . The system of claim 1 , wherein the characteristic data is based on a measurement by a sensor in the additive manufacturing system, the measurement representing temperature of build material, an image of the build material, or a thickness of a layer of the build material.

9 . The system of claim 1 , wherein the characteristic data is a known characteristic of the additive manufacturing system.

10 . The system of claim 1 , wherein the slice data is vector slice data.

11 . The system of claim 1 , wherein the slice data is contone slice data.

12 . The system of claim 1 , wherein the slice data is halftone slice data.

13 . The system of claim 1 , wherein the slice data is mask slice data.

14 . A method comprising:
by a processor: obtaining characteristic data representing a measurement made by a sensor in an additive manufacturing system; obtaining three-dimensional object design data representing a three-dimensional object to be generated by the additive manufacturing system; generating slice data representing a slice of the three-dimensional object based on the three-dimensional object design data; and when the additive manufacturing system is to generate the slice, transforming the slice data based on the characteristic data; and generate the slice using the additive manufacturing system.

15 . A non-transitory computer readable storage medium including executable instructions that, when executed by a processor, cause the processor to:
obtain slice data based on three-dimensional object design data, the slice data representing a slice of a three-dimensional object to be generated by an additive manufacturing system; when the additive manufacturing system is to generate the slice, transform the slice data based on characteristics of the additive manufacturing system.

Assignees

• Hewlett Packard Development Co Lp
• Hewlett Packard Development Co Lp

Inventors

• Cortes Sebastia
• De Pena Alejandro Manuel
• Giralt Josep

Classifications

• G05B2219/49023

  3-D printing, layer of powder, add drops of binder in layer, new powder · CPC title

• B33Y50/00

  Data acquisition or data processing for additive manufacturing · CPC title

• G05B2219/49011

  Machine 2-D slices, build 3-D model, laminated object manufacturing LOM · CPC title

• B29K2105/251

  Particles, powder or granules (expandable particles B29K2105/046) · CPC title

• G05B19/4099 Primary

  Surface or curve machining, making three-dimensional [3D] objects, e.g. desktop manufacturing · CPC title