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3D printing method and 3D printing system

A technology of 3D printing and printing speed, applied in the field of 3D printing, which can solve the problems of printing failure, difficulty in removing objects, and easy damage to printing equipment.

Inactive Publication Date: 2019-05-07
INVENTECSHANGHAI TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of printing the model, the object printed according to the model must have a certain degree of adhesion to the workbench: if the object is not firmly bonded to the workbench, the object will easily collapse during the printing process and cause printing failure; if the object is not firmly bonded to the workbench If the adhesion is too strong, it will be very difficult to remove the object after printing, and it may even damage the printing equipment

Method used

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  • 3D printing method and 3D printing system
  • 3D printing method and 3D printing system

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Embodiment Construction

[0032] In the prior art, the adhesion between the objects printed on the workbench and the workbench is often inappropriate. Either the object collapses during the printing process, or the printed object is not easy to remove from the workbench, resulting in the failure of the workbench. damage. The inventor found through research that the printing parameters of the base of the model are very critical. In general, when printing models, the printing parameters of the base are fixed, which cannot adapt to various models: some models have a good base adhesion; some models have insufficient base adhesion to support the entire object (such as a tall tower); Some models are stuck too firmly and cannot be removed (for example, a very thin large round cake).

[0033] The inventors conducted in-depth research and found that, if the ratio of the base area of ​​the model to the height of the model is different, the required printing parameters of the base are different. If the ratio of ...

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Abstract

The invention discloses a 3D printing method and system. The method includes the steps that according to the base area of a model and the height of the model, a specific value is obtained; based on the specific value, a corresponding parameter set is selected; and a base of the model is printed out according to the corresponding parameter set. As for printing of various models, the proper degree of adhesion of goods and a workbench can be guaranteed, the effect that objects are not collapsed in the printing process can be ensured, and meanwhile the objects can be taken down from the workbench easily.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a 3D printing method and a 3D printing system. Background technique [0002] At present, one of the more common processes used in 3D printers is Fused Deposition Modeling (Fused Deposition Modeling, referred to as FDM). ) is a method of heating and melting and then stacking and forming. [0003] In the 3D printer, under the control of the computer, the heating nozzle moves in the X-Y plane according to the cross-sectional profile information of the product part. The thermoplastic filamentary material is sent to the hot-melt nozzle by the wire feeding mechanism, and is heated and melted into a semi-liquid state in the nozzle. , and then extruded, selectively coated on the workbench, and formed a layer of thin slices with a certain thickness after rapid cooling. After the section forming of one layer is completed, the workbench is lowered to a certain height, and then the cla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/386B29C64/118B29C64/245B33Y50/02B33Y30/00
CPCB33Y30/00B33Y50/02
Inventor 沈炜
Owner INVENTECSHANGHAI TECH
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