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A 3D printing model detail region filling method based on shape features

A three-dimensional printing and shape feature technology, applied in image data processing, instruments, etc., can solve the problems of low printing model strength, high consumption of consumables, long printing time, etc., to save printing consumables, low filling rate, and improve printing efficiency. Effect

Active Publication Date: 2018-06-19
SOUTHEAST UNIV
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Problems solved by technology

[0004] However, at present, the same filling rate is usually used for the interior of the same printed model, which will cause the printed model to have low strength in the detailed structure and easy to break from the model
Although the way to improve the strength of the model is to increase the filling rate of the model, for large-scale models with detailed structures, if a higher filling rate is used, it will lead to a long printing time and a large amount of consumables

Method used

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  • A 3D printing model detail region filling method based on shape features
  • A 3D printing model detail region filling method based on shape features
  • A 3D printing model detail region filling method based on shape features

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0039] Such as figure 1 As shown, the present invention provides a 3D printing model detail region filling method based on shape features, which specifically includes the following steps:

[0040] Step 1: Import the model into the slicing software CuraEngine for layered slicing. The model file is a .stl file. Import the model file into the slicing engine. The model is layered and sliced ​​through the slicing engine to generate slice area data for each layer. .

[0041] Step 2: Set the parameter value of the model detail area. The model detail area parameters include detail area threshold, detail length threshold, detail expansion area layer number and detail area filling rate. The detail area threshold and detail length threshold parameters are respectively the detail area threshold. The judging condition is that the number of layers of the detail ex...

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Abstract

The invention provides a 3D printing model detail area partition filling method based on shape features. The method comprises the steps as follows: first, layering and slicing a model, and setting model detail area parameters; then, traversing the slice areas layer by layer and judging whether there is a detail area in each slice layer, and if there is a detail area in a slice layer, marking out the detail area according to the contour features of the slice area; and finally, getting the detail area and the non-detail area of each layer through Boolean operation, and filling the detail area of each layer at high filling rate. A printing model obtained using the 3D printing model detail area partition filling method based on shape features put forward by the invention is of high strength in detail positions, and has the advantages of high printing efficiency and printing supply saving.

Description

technical field [0001] The invention relates to a three-dimensional printing model structure optimization technology, in particular to a partition filling method for a detailed area of ​​a three-dimensional printing model. Background technique [0002] Three-dimensional printing technology is a kind of rapid prototyping, and it is a high-tech manufacturing technology developed on the basis of CAD / CAM technology, layered manufacturing technology, computer numerical control technology and material science. The technical principle of 3D printing is to slice the 3D model layer by layer, formulate the printing trajectory according to the contour information of each layer, and accumulate and shape from bottom to top. 3D printing technology has the advantages of fast processing speed and high flexibility, so it has been widely used in machinery, construction, biomedicine and other fields. [0003] Filling is the internal structure of the 3D printing model, which ensures that the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T19/20
CPCG06T19/20
Inventor 戴敏张志胜张俊卿胡玉波
Owner SOUTHEAST UNIV
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