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A parallel reciprocating linear filling optimization method and system

A technology of reciprocating straight lines and parallel straight lines, applied in processing and manufacturing, manufacturing auxiliary devices, processing data acquisition/processing, etc., can solve problems such as poor filling accuracy at corners, reduce system stability, and printer loss, so as to avoid sudden changes and reduce The effect of the number of withdrawals, improving the processing speed and the precision of the workpiece

Active Publication Date: 2021-06-22
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of a large number of paths connecting the corners, the speed at the corners will suddenly change, which will cause a certain loss to the printer itself, and will make the filling accuracy at the corners poor.
In addition, when the extrusion head runs between the corners and the straight lines, it is idling, so the printer needs to withdraw the material before that, and the material is withdrawn and the extrusion is accelerated between short distances more times. To some extent, it will reduce the stability of the system

Method used

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  • A parallel reciprocating linear filling optimization method and system
  • A parallel reciprocating linear filling optimization method and system
  • A parallel reciprocating linear filling optimization method and system

Examples

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Embodiment 1

[0035] see figure 1 , this embodiment provides a parallel reciprocating straight line filling optimization method, including the following steps:

[0036] S1: Obtain the 3D model of the 3D entity to be printed, and determine the filling distance d;

[0037] S2: Slicing and layering the 3D model, using the existing parallel reciprocating straight line filling method to obtain the parallel straight line filling line segments of each layer of the 3D model in the plane;

[0038] S3: Traversing the parallel line filling line segments, and judging whether two adjacent parallel line filling line segments in the same layer meet the path optimization conditions, if so, go to step S4, if not, use the partition algorithm to divide the adjacent two parallel line The filled line segment is preprocessed, and after regenerating the filled line segment, enter step S4;

[0039] S4: Use the orthogonal decomposition principle to optimize the filling path at the corners of two adjacent parallel...

Embodiment 2

[0059] Corresponding to the above method embodiments, this embodiment provides a parallel reciprocating linear filling system, including a memory, a processor, and a computer program stored in the memory and operable on the processor, the processor The steps of the above method are realized when the program is executed.

[0060] As mentioned above, the present invention provides a parallel reciprocating straight line filling optimization method and system, on the basis that the printer can keep the line speed constant through the orthogonal decomposition of the movement, and convert the existing parallel filling reciprocating corners into standard arc curves , path optimization can reduce the idling corners between two parallel printing paths, thereby avoiding sudden changes in printing speed, reducing idling routes and the number of material withdrawals, improving rapid prototyping processing speed and part precision, and maintaining the same online speed In the case of chang...

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Abstract

The invention relates to the field of printing technology path generation, and discloses a parallel reciprocating straight line filling method and system, so as to realize the speed stability in the parallel reciprocating straight line path, improve the processing speed of rapid prototyping, improve the precision of the parts to reduce the loss of the printer, and further improve the The efficiency of the printer prolongs the service life of the printer; the method of the present invention includes obtaining the three-dimensional model of the three-dimensional entity to be printed, and determining the filling distance d; the three-dimensional model is sliced ​​and layered, and the existing parallel reciprocating linear filling method is used to obtain the three-dimensional model Parallel straight line filling line segments in the plane of each layer; Traverse the parallel straight line filling line segments, and judge whether two adjacent parallel straight line filling line segments in the same layer meet the path optimization conditions; replace the original parallel straight line filling with the optimized path Segments, update the filled path for each layer.

Description

technical field [0001] The invention relates to the field of printing technology path generation, in particular to a parallel reciprocating straight line filling optimization method and system. Background technique [0002] 3D printing technology is a technology that realizes manufacturing through the gradual accumulation of materials based on the principle of discrete and accumulation. It uses computer graphics to cut the 3D model into a series of "thin slices" of a certain thickness, and the 3D printing equipment prints layer by layer from bottom to top and finally superimposes them into three-dimensional physical objects. This method can quickly realize the manufacture of complex structures that are difficult or impossible to process by traditional techniques without props or molds, which can not only shorten the product development cycle but also reduce production costs. However, because a model generally has a large number of layers, and each layer needs to be filled w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/393B29C64/10B33Y50/02B33Y10/00
CPCB33Y10/00B33Y50/02B29C64/10B29C64/393
Inventor 张俊宋朝霞李丽娇田慧敏
Owner CENT SOUTH UNIV
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