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Three-dimensional printing method and device, computer equipment and storage medium

A 3D printing and 3D model technology, which is used in manufacturing auxiliary devices, processing and manufacturing, and processing data acquisition/processing. demand, the effect of improving the smoothness and flatness

Active Publication Date: 2021-06-25
SHENZHEN CREALITY 3D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is less contact, it will cause the material extruded by the printer nozzle to not solidify in the normal position, forming pimples or layers. If there is more contact, the support will be difficult to peel off from the model
So as long as there is a support, the contact position of the support will not be smooth, which will affect the printing effect

Method used

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  • Three-dimensional printing method and device, computer equipment and storage medium
  • Three-dimensional printing method and device, computer equipment and storage medium
  • Three-dimensional printing method and device, computer equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] figure 1 It is a flow chart of the three-dimensional printing method provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of printing a three-dimensional model using fused deposition modeling technology. This method can be executed by the three-dimensional printing device provided by the embodiment of the present invention. The device can be implemented by hardware and / or software, and generally can be integrated in computer equipment. Such as figure 1 As shown, it specifically includes the following steps:

[0049] S11. Obtain a two-dimensional contour map of the three-dimensional model.

[0050] Among them, the two-dimensional contour map can be obtained by projecting the three-dimensional model from any direction, and further, the projection map with the largest area in the projection map obtained by projecting in any direction can be determined as the two-dimensional contour map of the three-dimensional model in this scheme...

Embodiment 2

[0065] figure 2 It is a schematic diagram of the structure of the 3D printing device provided in Embodiment 2 of the present invention. The device can be implemented by hardware and / or software, and generally can be integrated into computer equipment. Such as figure 2 As shown, the device includes:

[0066] A two-dimensional contour map acquisition module 21, configured to obtain a two-dimensional contour map of a three-dimensional model;

[0067] A skeleton diagram generating module 22, configured to generate a skeleton diagram of a two-dimensional contour diagram, and obtain a coordinate correspondence between the skeleton diagram and the two-dimensional contour diagram;

[0068] Skeleton graph segmentation module 23, used to segment the skeleton graph;

[0069] The three-dimensional model segmentation module 24 is used to determine the corresponding three-dimensional model position of each line after the segmentation in the skeleton diagram according to the coordinate ...

Embodiment 3

[0088] image 3 The schematic structural diagram of the computer device provided for the third embodiment of the present invention shows a block diagram of an exemplary computer device suitable for implementing the embodiment of the present invention. image 3 The computer equipment shown is only an example, and should not bring any limitation to the functions and scope of use of the embodiments of the present invention. Such as image 3 As shown, the computer equipment includes a processor 31, a memory 32, an input device 33 and an output device 34; the number of processors 31 in the computer equipment can be one or more, image 3 Taking a processor 31 as an example, the processor 31, memory 32, input device 33 and output device 34 in the computer equipment can be connected by bus or other methods, image 3 Take connection via bus as an example.

[0089] The memory 32, as a computer-readable storage medium, can be used to store software programs, computer-executable progra...

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Abstract

The embodiment of the invention discloses a three-dimensional printing method and device, computer equipment and a storage medium. The method comprises the steps of: acquiring a two-dimensional profile diagram of a three-dimensional model; generating a skeleton diagram of the two-dimensional profile diagram, and obtaining a coordinate corresponding relation between the skeleton diagram and the two-dimensional profile diagram; segmenting the skeleton diagram; determining segmented three-dimensional model parts corresponding to various lines in the skeleton diagram according to the coordinate corresponding relation, and determining the lines as direction vectors of the corresponding three-dimensional model parts; determining slice layering angles of the corresponding three-dimensional model parts according to the direction vectors; and printing the three-dimensional model according to the slice layering angles. According to the technical scheme provided by the embodiment of the invention, the requirements of the three-dimensional model, especially the three-dimensional model with a smaller angle with the horizontal direction, for printing support are effectively reduced, so that the use of printing consumables is reduced, the smoothness and flatness of the surface of the three-dimensional model are improved, and the three-dimensional model is more attractive.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of 3D printing, and in particular to a 3D printing method, device, computer equipment, and storage medium. Background technique [0002] The existing 3D printing technology is to first layer the three-dimensional model along the z-axis direction in the Cartesian coordinate system to obtain the data in the z-axis direction, and then print the data in the x-axis and y-axis directions of each layer, Finally, according to the layering results in the z-axis direction, it reaches the next layer and continues to print, and so on until the model is printed. Due to the diversity of the model, there is a difference between the front and back slice layers of the model at the edge of the model. If the difference is greater than a certain value, the printed material will not be well solidified on the printed layer. [0003] The general approach is to set a parallel support surface below this po...

Claims

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Application Information

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IPC IPC(8): B29C64/10B29C64/393B33Y10/00B33Y50/02
CPCB29C64/10B29C64/393B33Y10/00B33Y50/02
Inventor 刘辉林唐京科陈春敖丹军易陈林
Owner SHENZHEN CREALITY 3D TECH CO LTD
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