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Stacked printing generation method and system for 3D printing

A 3D printing and generation system technology, applied in the field of 3D printing, can solve the problems of inability to distinguish between models and supports, influence of model accuracy, burr generation, etc., to save manpower and time costs, close arrangement, and high practical value.

Active Publication Date: 2021-01-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a single-material printing technology, DLP printing cannot distinguish the model from the support when printing the model, and the post-processing processes such as support removal and model polishing will affect the accuracy of the model and cause burrs.

Method used

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  • Stacked printing generation method and system for 3D printing
  • Stacked printing generation method and system for 3D printing
  • Stacked printing generation method and system for 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a 3D printing-oriented stack printing generation method;

[0047] like figure 1 As shown, the stack printing generation method for 3D printing includes:

[0048] S101: Obtain several 3D models to be printed, and establish an octree structure for each 3D model to be printed;

[0049]S102: For each 3D model to be printed, set a constraint surface; the constraint surface refers to an area where support is not allowed to be added on the 3D model; for example figure 2 shown;

[0050] S103: Calculate the rotatable angles of all 3D models to be printed according to the constrained surface of each 3D model to be printed; for example image 3 shown;

[0051] S104: Under the constraints of the rotatable angle of the 3D models to be printed, arrange all the 3D models to be printed;

[0052] S105: Add scaffolding and supporting structures to the arranged 3D models to be printed; with the assistance of the scaffolding and supporting structures, realize...

Embodiment 2

[0095] This embodiment provides a 3D printing-oriented stack printing generation system;

[0096] 3D printing-oriented stack printing generation system, including:

[0097] An acquisition module configured to: acquire several 3D models to be printed, and establish an octree structure for each 3D model to be printed;

[0098] A constraint surface setting module, which is configured to: set a constraint surface for each 3D model to be printed; the constraint surface refers to an area where support is not allowed to be added on the 3D model;

[0099] A rotatable angle calculation module configured to: calculate the rotatable angles of all 3D models to be printed according to the constraint surface of each 3D model to be printed;

[0100] An arrangement module configured to: arrange all 3D models to be printed under the constraints of the rotatable angle of the 3D models to be printed;

[0101] The printing module is configured to: add scaffolding and supporting structures to th...

Embodiment 3

[0106] This embodiment also provides an electronic device, including: one or more processors, one or more memories, and one or more computer programs; wherein, the processor is connected to the memory, and the one or more computer programs are programmed Stored in the memory, when the electronic device is running, the processor executes one or more computer programs stored in the memory, so that the electronic device executes the method described in Embodiment 1 above.

[0107] It should be understood that in this embodiment, the processor can be a central processing unit CPU, and the processor can also be other general-purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, o...

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PUM

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Abstract

The invention discloses a stacked printing generation method and system for 3D printing. The method comprises the steps of obtaining multiple 3D models to be printed, and establishing an octree structure for each 3D model to be printed; setting a constraint surface for each 3D model to be printed, wherein each constraint surface refers to an area where a support is not allowed to be added and thearea which is located on the corresponding 3D model; according to the corresponding constraint surface of each 3D model to be printed, calculating the rotatable angles of all the 3D models to be printed; arranging all the 3D models to be printed under the constraint of the rotatable angles of the 3D models to be printed; adding scaffolds and supporting structures to the arranged 3D models to be printed; achieving the process that the multiple 3D models are printed at one time under the assistance of the scaffolds and the supporting structures.

Description

technical field [0001] The present application relates to the technical field of 3D printing, in particular to a method and system for generating stacked prints oriented to 3D printing. Background technique [0002] The statements in this section merely mention the background art related to this application, and do not necessarily constitute the prior art. [0003] As a kind of rapid prototyping technology, 3D printing is based on digital model files, using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. 3D printing is an additive manufacturing technology. Compared with traditional subtractive manufacturing, additive manufacturing can produce customized or more complex products. For some customized medical products or non-standard parts with complex structures but low demand, the use of additive manufacturing can reduce their manufacturing difficulty and reduce production costs. But in terms of mass production, its spee...

Claims

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Application Information

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IPC IPC(8): B29C64/106B29C64/20B29C64/386B29C64/393B33Y10/00B33Y30/00B33Y50/00B33Y50/02G06T17/00
CPCB33Y10/00B33Y30/00B33Y50/00B33Y50/02B29C64/106B29C64/20B29C64/386B29C64/393G06T17/005
Inventor 吕琳曹令鑫田李昊彭昊
Owner SHANDONG UNIV
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