3D printing file generation method and device, computer equipment and storage medium

Abstract

The invention relates to a 3D printing file generation method and device, computer equipment and a storage medium. The method comprises the steps that all suspended surfaces in a to-be-printed model are obtained; and each layer of slice of a multi-layer support body is determined according to each suspended surface and the step height, the distance between each layer of support body of the multi-layer support body and the bottom of the working space is sequentially decreased along with the decreasing of the distance between each layer of support body of the multi-layer support body and the area in which a connected non-suspended surface is located to form a step structure, and the printing path of the multi-layer support body is determined according to each layer of slice of the multi-layer support body. The printing speed of the suspended area of each layer of the support body is set, so that continuous cooling forming is achieved during printing; and a printing file is generated according to the printing path of each multi-layer support body and each layer of slice of the to-be-printed model. The suspended surfaces are supported by multiple layers, and the suspended area of each layer of the support body can be continuously cooled and formed during printing, so that the sinking probability of the suspended surfaces is reduced, the size of the support is reduced, the material consumed by the support is reduced, and the printing speed is increased.

Description

technical field [0001] The present application relates to the technical field of 3D printing, in particular to a method, device, computer equipment and storage medium for generating 3D printing files. Background technique [0002] Driven by the intellectualization of computer digital technology, the application of three-dimensional (3D) printing technology is becoming more and more extensive. 3D printing is to first slice the model and generate a slice file, and then print layer by layer according to the slice file. Bonding materials to create three-dimensional objects. Due to the diversity of the model, some positions of the model will be suspended, that is, the lower part of some positions is unsupported, and the unsupported position may sink when printing, so it is usually necessary to add support for the suspended position; currently added The method of support is to generate vertical support from the point where the support needs to be added on the model to the bottom ...

AI Technical Summary

Problems solved by technology

Due to the diversity of the model, some positions of the model will be suspended, that is, the lower part of some positions is unsupported, and the unsupported position may sink when printing, so it is usually necessary to add support for the suspended position; currently added The method of support is to generate vertical support from the point where the support needs to be added on the model to the bottom of the workspace or the position on the model below the point where the support needs to be added, but this generates more supports, which affects the printing speed and waste of printing materials

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