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Implementation method based on selective sintering suppression technology for 3D model supporting structure algorithm

A realization method and technology of supporting structure, applied in the field of 3D printing, can solve the problems of high powder consumption and high printing cost

Active Publication Date: 2016-09-28
GUANGDONG SPRINTRAY 3D PRINTING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The support structure generated by the existing 3D model algorithm implementation method has the same characteristics as the part, and the same or different materials are used for filling or melting to achieve the support effect. The above 3D model algorithm implementation method consumes a lot of powder and prints. The cost is high

Method used

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  • Implementation method based on selective sintering suppression technology for 3D model supporting structure algorithm
  • Implementation method based on selective sintering suppression technology for 3D model supporting structure algorithm
  • Implementation method based on selective sintering suppression technology for 3D model supporting structure algorithm

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example 1

[0041] Please see figure 1 with figure 2 , shown in the figure is the required 3D printed part with a suspended structure, and the selected process parameters correspond to ;

[0042] Please see image 3 with Figure 4 , when the algorithm performs support calculation from top to bottom, when it encounters the following triangular piece of the surface marked in red, , these layers generate supports; in the green area, there are , so it is judged that no support is needed.

[0043] For the support marked as the 0 area, the support starts from the upper surface, and as for the lower surface, it is inside the part; for the support of the 3 surface, the support starts from the upper surface and ends at the formed bottom plate;

[0044] For surface 1, part of the support starts from surface 1 and ends at surface 5, and part of the support ends at the bottom plate; for surface 4, the forming starts at surface 4 and ends at the bottom plate, because the support is calculate...

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Abstract

The invention discloses an implementation method based on a selective sintering suppression technology for a 3D model supporting structure algorithm. The implementation method comprises the following steps: a, obtaining a digital file of the model and converting the digital file into a file with a standard STL format; b, numbering the obtained file with the STL format; c, carrying out support and calculation from a triangular plate where a Z-value maximum point lies; d, repeating work of c1 to c4 for a slice plane of Z(j+1) so as to obtain closed curves C(j+1, 1), C(j+1,2) and so on; e, repeating steps c and d until the slice plane reaches the bottom of the mould; and f, for each supporting point, connecting from a starting layer of the corresponding supporting point to an ending layer of the corresponding supporting point to form a line segment in the Z direction, and generating a needed supporting pillar by taking the segment as an axis and taking a radius r as a center. According to the implementation method, a supporting area is completely suppressed during sintering, so that characteristics of loose powder are guaranteed; and due to the action of a suppressant, stripping damages of an area in contact with a component can be as small as possible, so that post-processing needs are reduced.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular, it is a method for implementing a 3D model support structure algorithm based on selective suppression sintering technology. Background technique [0002] The support structure generated by the existing 3D model algorithm implementation method has the same characteristics as the part, and the same or different materials are used for filling or melting to achieve the support effect. The above 3D model algorithm implementation method consumes a lot of powder and prints. The cost is high . [0003] Therefore, the prior art needs to be improved and improved. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a 3D model structure algorithm realization method based on selective suppression sintering technology with less powder consumption and simple support separation. [0005] Selective inhibition si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B22F3/10B28B1/00B33Y10/00
CPCB28B1/001B33Y10/00B22F10/00B22F10/31B22F10/47B22F10/80B22F10/28B22F10/73Y02P10/25
Inventor 张靖金良黄少威包海峰叶宇柔
Owner GUANGDONG SPRINTRAY 3D PRINTING TECH CO LTD
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