Dynamic real-time slice engine for 3D printing

Patent metadata

Field	Value
Publication number	US-9841750-B2
Application number	US-201514711654-A
Country	US
Kind code	B2
Filing date	May 13, 2015
Priority date	May 13, 2014
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium, including a method for 3D printing without preprocessing a CAD model before delivery to a 3D printer. The CAD model for a design to be printed is received by a 3D printer. Instructions are generated for printing the first slice. While the instructions are used to start printing the CAD model, dynamic real-time slicing is performed on a remaining portion of the CAD model. Preprocessed data, model analysis information or real-time feedback is received during the printing of a respective slice. A next slice is identified, and slicing parameters are adjusted, including adjusting a slicing parameter for the next slice. Instructions for printing the next slice are generated. The next slice is printed based on the generated instructions. Dynamic real-time slicing is repeated to generate a then next slice and associated printing instructions.

First claim

What is claimed is:

1. A method for 3D printing without a necessity to pre-process a computer-aided design (CAD) model before delivery to a 3D printer, the method comprising:
receiving, by a 3D printer, a CAD model for a design to be printed by the 3D printer;
processing the CAD model to identify a first slice and generating instructions for printing the first slice;
using the generated instructions to start printing of the CAD model; and
in parallel with the printing, performing dynamic real-time slicing on a remaining portion of the CAD model including:
receiving pre-processed data, model analysis information or real-time feedback during the printing of a respective slice;
identifying a next slice for printing including adjusting one or more slicing parameters based on the received pre-processed data, model analysis information or real-time feedback, wherein adjusting includes adjusting a slicing parameter for the next slice to be printed by the 3D printer, and wherein adjusting one or more slicing parameters further includes adjusting a slice thickness based on one or more of CAD model geometry or user input including slicing at least two different slice thicknesses when printing the CAD model, wherein the user input is received after the start of printing and controls a speed at which a remaining portion of printing occurs, with higher speed resulting in greater thickness slices;
generating instructions for printing the next slice; and
printing the next slice based on the generated instructions and, in parallel, repeating the performing dynamic real-time slicing to generate a then next slice and associated instructions for printing.

2. The method of claim 1 , wherein adjusting the slice thickness includes increasing a slice thickness for a next slice to be greater than a slice thickness for a last-printed slice when printing a wall.

3. The method of claim 1 , wherein adjusting the slice thickness includes decreasing a slice thickness for a next slice to be less than a slice thickness for a last-printed slice when printing a curve.

4. A method for 3D printing without a necessity to pre-process a computer-aided design (CAD) model before delivery to a 3D printer, the method comprising:
receiving, by a 3D printer, a CAD model for a design to be printed by the 3D printer;
processing the CAD model to identify a first slice and generating instructions for printing the first slice;
using the generated instructions to start printing of the CAD model; and
in parallel with the printing, performing dynamic real-time slicing on a remaining portion of the CAD model including:
receiving pre-processed data, model analysis information or real-time feedback during the printing of a respective slice;
identifying a next slice for printing including adjusting one or more slicing parameters based on the received pre-processed data, model analysis information or real-time feedback, wherein adjusting includes adjusting a slicing parameter for the next slice to be printed by the 3D printer;
identifying one or more delicate features in the CAD model that may result in print unreliability, and wherein adjusting the one or more slicing parameters includes increasing a next slice thickness to increase print reliability and accordingly not printing the identified one or more delicate features;
generating instructions for printing the next slice; and
printing the next slice based on the generated instructions and, in parallel, repeating the performing dynamic real-time slicing to generate a then next slice and associated instructions for printing.

5. The method of claim 4 , further comprising processing an image taken from a camera including identifying one or more calibration errors and adjusting an alignment of a next slice.

6. A method for 3D printing without a necessity to pre-process a computer-aided design (CAD) model before delivery to a 3D printer, the method comprising:
receiving, by a 3D printer, a CAD model for a design to be printed by the 3D printer;
processing the CAD model to identify a first slice and generating instructions for printing the first slice;
using the generated instructions to start printing of the CAD model;
in parallel with the printing, performing dynamic real-time slicing on a remaining portion of the CAD model including:
receiving pre-processed data, model analysis information or real-time feedback during the printing of a respective slice;
identifying a next slice for printing including adjusting one or more slicing parameters based on the received pre-processed data, model analysis information or real-time feedback, wherein adjusting includes adjusting a slicing parameter for the next slice to be printed by the 3D printer;
generating instructions for printing the next slice; and
printing the next slice based on the generated instructions and, in parallel, repeating the performing dynamic real-time slicing to generate a then next slice and associated instructions for printing; and

detecting an anomaly in a slice, determining a default configuration for the detected anomaly, and applying the default configuration to the generated instructions to ensure no print error occurs when printing the CAD model.

7. The method of claim 6 , wherein adjusting the one or more slicing parameters includes determining a default setting for at least one of the slicing parameters to print a first slice, and adjusting the at least one slicing parameter at a next slice based on feedback obtained during printing or an evaluation of the CAD model.

8. A non-transitory computer-readable medium storing instructions that, when executed, cause one or more processors to perform operations for 3D printing without a necessity to pre-process a computer-aided design (CAD) model before delivery to a 3D printer, the operations comprising:
receiving, by a 3D printer, a CAD model for a design to be printed by the 3D printer;
processing the CAD model to identify a first slice and generating instructions for printing the first slice;
using the generated instructions to start printing of the CAD model; and
in parallel with the printing, performing dynamic real-time slicing on a remaining portion of the CAD model including:
receiving pre-processed data, model analysis information or real-time feedback during the printing of a respective slice;
identifying a next slice for printing including adjusting one or more slicing parameters based on the received pre-processed data, model analysis information or real-time feedback, wherein adjusting includes adjusting a slicing parameter for the next slice to be printed by the 3D printer, and wherein adjusting one or more slicing parameters further includes adjusting a slice thickness based on one or more of CAD model geometry or user input including slicing at least two different slice thicknesses when printing the CAD model, wherein the user input is received after the start of printing and controls a speed at which a remaining portion of printing occurs, with higher speed resulting in greater thickness slices;
generating instructions for printing the next slice; and
printing the next slice based on the generated instructions and, in parallel, repeating the performing dynamic real-time slicing to generate a then next slice and associated instructions for printing.

9. The non-transitory computer-readable medium of claim 8 , wherein adjusting the slice thickness includes increasing a slice thickness for a next slice to be greater than a slice thickness for a last-printed slice when printing a wall.

10. The non-transitory computer-readable medium of claim 8 , wherein adjusting the slice thickness includes decreasing a slice thickness for a next slice to be less than a slic

Assignees

• Autodesk Inc

Inventors

• Willis Karl
• Schmidt Ryan Michael
• Xu Baoxuan

Classifications

• G05B2219/49008

  Making 3-D object with model in computer memory · CPC title

• G05B19/4099 Primary

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

• B33Y50/02

  for controlling or regulating additive manufacturing processes · CPC title

• G05B2219/49023

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

• B29C64/393

  for controlling or regulating additive manufacturing processes · CPC title