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3D printing trajectory control method, device and 3D printing system

A trajectory control, 3D printing technology, applied in the field of 3D printing, can solve the problems of complex model support structure, slow printing speed, low efficiency and so on

Active Publication Date: 2016-05-11
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a 3D printing trajectory control method, device and 3D printing system to solve the problems of slow printing speed, complex model supporting structures and low efficiency in the prior art

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  • 3D printing trajectory control method, device and 3D printing system
  • 3D printing trajectory control method, device and 3D printing system

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Embodiment Construction

[0021] The invention discloses a 3D printing method based on the slope of the outer contour. This method mainly calculates the height value that needs to be raised for each layer of printing by judging the slope of the outer contour, and the trajectory curve required for each layer of printing. The trajectory of each layer may not be in the same height plane. The method of the invention can print complex curved surfaces without support, can make up for the defects of many support structures, slow printing speed, and low efficiency in the current printing process, and promote the application of 3D printing in a wider range of fields. In particular, the present invention is suitable for printing a single-layer or thin-layer model structure with a small slope without a support structure, which increases the application range of 3D printing technology and improves 3D printing efficiency.

[0022] As a first aspect of the invention, please refer to Figure 1 to Figure 4 , providin...

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Abstract

The invention provides a 3D printing trajectory control method, a 3D printing trajectory control device and a 3D printing system. The 3D printing trajectory control method comprises the following steps: acquiring a 3D model of a to-be-printed model; calculating the slope of an outer surface profile of the 3D model; setting a first ascending increment along the slope direction; determining a second ascending increment in the vertical direction according to the first ascending increment; controlling the motion trajectory of a printing head according to the second ascending increment, thereby realizing printing. According to the invention, at the bottom, the top and other parts of the model with different slopes, based on the increments in the slope directions, the planned trajectories of the bottom part with high slope and the top part with low slope have obvious differences, that is, the printing trajectory at the top with low slope is thicker, so that the special positions can be printed without being supported.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a 3D printing trajectory control method, device and 3D printing system. Background technique [0002] The usual 3D printing method adopts a layer-by-layer stacking process method. The characteristic of the printing trajectory curve calculated by this method is that the height value of the same layer is a constant value, and when calculating layer by layer, the value superimposed upward is also a constant value. When using this method, when the slope of the model outline is small, it is necessary to increase the support structure. Increasing the support material will inevitably increase the material and printing time, and some support materials will also affect the surface quality of the model. [0003] figure 1 A method for controlling printing trajectory during 3D printing in the prior art is shown. Such as figure 1 As shown, when using the printing method of the prior art to print...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C67/00
Inventor 孙小勇赵永廷郑彬段宣明范树迁黎静张祺宋道磊
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI