Printing Three-Dimensional Objects Using Hybrid Format Data

• US 20110222081A1
• Filed: 03/15/2010
• Published: 09/15/2011
• Est. Priority Date: 03/15/2010
• Status: Abandoned Application

• Current Assignee: Chen Yi, Ivan Hee Yiu Ma, Yecheng Wu
• Original Assignee: Chen Yi, Ivan Hee Yiu Ma, Yecheng Wu
• Inventors: Yi, Chen, Wu, Yecheng, Ma, Ivan Hee Yiu
• Application Number:
  US12/724,299
• Publication Number:
  US 20110222081A1
• Time in Patent Office: Days
• US Class Current: 358/1.9
• CPC Class Codes: B29C 64/141 using only solid materials
• CPC Class Codes: B29C 64/147 using sheet material, e.g. laminated object manufacturing [LOM] or laminating sheet material precut to local cross sections of the 3D object
• CPC Class Codes: B29C 64/386 Data acquisition or data processing for additive manufacturing
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 30/00 Apparatus for additive manufacturing; Details thereof or accessories therefor
• CPC Class Codes: B33Y 50/00 Data acquisition or data processing for additive manufacturing
• CPC Class Codes: B33Y 70/00 Materials specially adapted for additive manufacturing
• CPC Class Codes: G06T 17/00 Three dimensional [3D] modelling, e.g. data description of 3D objects
• CPC Class Codes: H04N 1/56 Processing of colour picture signals H04N1/52 takes precedence

Abstract

Methods of how to build a 3D model with both surface features and internal structures are disclosed. 3D image data in a hybrid data format or other suitable data formats are first received as input and then broken down into layers of 2D data. The layers of 2D data hold various attribute information about the model, such as colors, shapes, durometer hardness, etc. The layers of data are printed on printing sheets that are specially formulated. Selected materials are also deposited on printed sheets as dictated by the 2D data. Each printed sheet is cut along the shape boundaries either before or after it has been bound to previously printed sheets. Finished sheets are then bound and processed to generate a 3D model with rich details.

Claims

1. A method of building a 3D model, comprising:

receiving image data as input, said image data being a 3D image of the 3D model;

processing the image data to break down the 3D image into two or more layers wherein processed data of each layer contain attribute information of the 3D model that includes color and hardness;

printing the processed data of each layer onto a printing sheet and depositing one or more selected materials onto the printed sheet as dictated by the processed data of each layer;

preparing and binding the printed sheet into a stack;

continuing the printing and the preparing and binding steps until the processed data of a last layer has been printed onto a last sheet and the last sheet has been assembled into the stack;

finishing the 3D model by removing any excessive material from the 3D model.

2. The method of claim 1, wherein the image data is in a hybrid data format.

3. The method of claim 1, wherein the one or more selected materials are mixed before being deposited onto the printed sheet.

4. The method of claim 1, wherein the one or more selected materials are not mixed and are deposited separately onto the printed sheet.

5. The method of claim 1, wherein the preparing of the printed sheet includes collating and assembling.

6. The method of claim 5, wherein the preparing of the printed sheet includes curing of the one or more selected materials deposited on the printed sheet.

7. The method of claim 6, wherein the curing includes pressing the printed sheet with a heated roller.

8. The method of claim 6, wherein the curing includes exposing the printed sheet with UV light.

9. The method of claim 1, wherein the preparing of the printed sheet includes cutting through a boundary on the printed sheet.

10. The method of claim 1, wherein the processing of the image data includes calculating how many layers of processed data based on material properties of the printing sheet and the one or more selected materials.

11. The method of claim 1, wherein the one or more selected materials include a type of repositionable adhesive for easy dissembling and reassembling of the 3D model.

12. The method of claim 1, wherein the printing sheet has built-in magnetism for easy dissembling and reassembling of the 3D model.

13. The method of claim 1, wherein the processed data of one or more layers are printed on with florescent inks.

14. A 3D printing apparatus that is used to build a 3D model, comprising:

a data processing module for processing image data of the 3D model and for breaking down the image data into processed data of two or more layers with the image data being a 3D image of the 3D model;

a system controlling module for controlling the 3D printing apparatus;

a media cartridge for holding printing sheets;

a building module for printing, preparing, assembling, and binding printed sheets into a stack and for finishing the 3D model after the stack is completed.

15. The apparatus of claim 14, further comprising an information storage device to store information about the media cartridge.

16. The apparatus of claim 15, wherein the information stored in the information storage device comprises the size information of the printing sheets.

17. The method of claim 16, wherein the building module comprises a printer for printing the processed data of the two or more layers onto the printing sheet.

18. The method of claim 17, wherein the building module further comprises a mechanism to transfer a printing sheet from the media cartridge to the building module.

19. The method of claim 18, wherein the building module further comprises a working platform to hold the 3D model while it is being built.

20. The method of claim 19, wherein the building module further comprises a dispensing mechanism for depositing one or more selected materials onto printed sheets to yield different durometer hardness.

21. The method of claim 20, wherein the one or more selected materials are epoxies.

22. The method of claim 20, wherein the one or more selected materials are solvent-resistant ink.

23. The method of claim 21, wherein the building module further comprises a cutting mechanism for cutting through boundaries of the 3D image.

24. The method of claim 22, wherein the building module further comprises a solvent dispense mechanism for dispensing solvent to remove parts of the printed sheet on which the solvent-resistant ink has not been deposited.

25. The method of claim 22, wherein the building module further comprises a distance sensing device for controlling positions of the working platform.

26. A 3D object builder for building complex objects derived from 3D hybrid data, comprising:

a media holder that includes a plurality of media, a media holding feature, a memory device wherein the memory device includes data regarding media details and security and wherein said media are of uniform dimensions to all media in the holder;

a mechanical mechanism that moves media from the media holder to a work area;

a means to implement a plurality of colors at each volumetric location of the 3D object while the media is in the work area, wherein the means to implement a plurality of colors is a typical color printing method attached to a 3D object builder such that the printer may deposit a plurality of color at each volumetric location in the 3D object that is being printed;

a means to implement a plurality of durometer hardness at each volumetric location of the 3D object while the media is in the work area, wherein the means to implement a plurality of said durometer hardness include materials in conjunction with chemical, curing and heating means; and

a means to build a plurality of objects within the 3D object all derived from said native hybrid data wherein the means to implement a plurality of objects derived from said data files is by distinguishing regions in each cross sectional layer of the 3D object and separating each of said regions in each cross section during the 3D object building process where the thickness of said cross sectional layer is dependent on the thickness of the media used to build the 3d object.