Three-dimensional printing method and system thereof

A technology of 3D printing and printing direction, applied in the field of 3D printing, can solve the problems affecting the yield rate of 3D printing and achieve the effect of optimizing the effect of 3D printing

Active Publication Date: 2015-09-09
BEIJING MINSU MOTION CONTROL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually the model specially designed for 3D printing is designed for the convenience of printing, and the default direction of the design is already the optimal direction; however, more 3D digital models are not designed for 3D printing, so in many cases the direction of 3D printing may not be The optimal direction greatly affects the yield of 3D printing

Method used

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  • Three-dimensional printing method and system thereof
  • Three-dimensional printing method and system thereof
  • Three-dimensional printing method and system thereof

Examples

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Effect test

Embodiment 1

[0069] Example 1, rotation optimization

[0070] E.g image 3 as shown, image 3 The left is the default printing direction of the model (inner rectangle). If the model exceeds the size of the printing volume (outer border), it cannot be printed in the default direction; in the existing technology, the model is considered too large, and the model is directly reduced and then printed in the default direction. While the preferred embodiment of the present invention will automatically try to perform rotation optimization, such as image 3 The right is the optimized printing direction, in this direction, the model can be printed directly without shrinking the model, thus ensuring the ideal printing effect.

[0071] Specifically, in the first preferred embodiment of the present invention, firstly, the printing direction is optimized based on the printing space. The purpose of optimization is to automatically rotate the model and find an optimized angle as a new printing directio...

Embodiment 2

[0083] Embodiment 2, optimization of inclination support

[0084] Such as Figure 4 As shown, when the printed object has a large inclination angle, since the FDM (Fused Deposition Modeling, Fused Deposition Modeling) printing process is always printed from the bottom up, it is necessary to generate additional supports, which use additional consumables, and finally To peel from the object itself wastes consumables while adding extra print time. Figure 4 In the middle left, the large trapezoidal object with an inclination angle above is the object to be printed, and the triangular object below is the support that must be generated; Figure 4 The shape of the support is shown on the right.

[0085] But see further Figure 5 ,same with Figure 4 The object to be printed in, if selected Figure 5 If three-dimensional printing is carried out in the printing direction shown, no additional support system is required for the two printing directions, which can effectively save ma...

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Abstract

The invention discloses a three-dimensional printing method and a system thereof, and relates to the field of three-dimensional printing. The method comprises the following steps: reading model data, determining the shape of a model, and presetting the model in a default printing direction; determining that whether the model exceeds a printing volume or not and / or the model needs support or not in the current printing direction; traversing the rotation angle to screen a smallest boundary distance printing direction as a practical printing direction if the model exceeds the printing volume; screening a smallest support volume and large bottom area printing area by using a support system generation algorithm as a practical printing direction if the model needs support; adopting the default printing direction as a practical printing direction if above two phenomena do not exist; and afresh setting the model data in the practical printing direction, and controlling a nozzle to carry out three-dimensional printing in the practical printing direction. The method and the system allow a three-dimensional digital model to be preprocessed and printing to be carried out in a preferably selected most appropriate and reasonable printing direction, optimize the printing result, and improve the printing success rate.

Description

technical field [0001] The invention belongs to the field of three-dimensional printing, in particular to a three-dimensional printing method and system. Background technique [0002] With the development of technologies such as computer control and rapid prototyping materials, 3D printing has become a hot topic in the current industrial design and manufacturing industries. Through computer control of the nozzle, the existing technology can successfully print the 3D digital model designed by the computer into a real one. thing. 3D printing is a process of constructing a virtual model into a physical object through layer-by-layer printing. When converting the virtual into reality, it needs to face the influence of the actual physical properties that are not considered in the virtual design, typically such as the gravity, center of gravity, Factors such as volume, length in each direction, and printing environment may affect the actual effect of the finished product. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y30/00B33Y50/02
CPCB29C67/00B33Y30/00B33Y50/02G05B19/4099
Inventor 金宇林
Owner BEIJING MINSU MOTION CONTROL CO LTD
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