Generating method and generating system for support of additive manufacturing

Abstract

The invention discloses a generating method and a generating system of a support of additive manufacture. The generating method includes determining a preset model of a 3D model according to planar data of the 3D model of an entity to be printed; determining the support area and the support side of the supporting area contacting with the entity according to the orthographic projection area of the preset model of the entity to be printed; generating a support structure model from top to bottom between the support side and a worktable by taking a plurality of points on the support side as peaks within the support area; cutting the preset model of the entity to be printed and the support structure model to obtain plane data of each single layer; controlling a 3d printer to print the preset model and the support structure model of the entity to be printed. The generating method and the generating system are good in printing effect, and cost fewer materials, and printed parts are high in strength.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a method and system for generating a support for additive manufacturing. Background technique [0002] Additive manufacturing, also known as 3D printing technology, realizes the printing of 3D models through the process of automatic numerical control layer-by-layer material accumulation. Compared with traditional processing technology, 3D printing technology does not need to make additional molds, and can directly process finished products. Moreover, it can overcome the special structural obstacles that cannot be realized by traditional machining, can realize the simplified production of any complex structural parts, and can automatically, directly and accurately transform design ideas from CAD models into models or devices with certain functions. [0003] At present, in the design process of 3D printing, first use computer modeling software to model, and then slice the bui...

AI Technical Summary

Problems solved by technology

Existing such as figure 1 As shown, the shape design of the support structure is more complex, and the larger the support area, the greater the material consumption

Therefore, in the process of generating printing supports to realize part printing, the waste of printing materials is large, and the printing cost is high

In addition, the part is fixed by generating the printing support, and then printing is performed according to the part model and the support model. After the model is printed, these additional printing supports need to be peeled off from the part model to obtain the part model. When peeling off these extra supports, the Point supports cause damage to the part model. In the process of generating printing supports in the prior art, the damage to the part model is difficult to predict when the printing support is peeled off, which greatly reduces the printing quality.

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