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Surface molded 3D (Three Dimensional) printing method and system

A 3D printing and surface forming technology, applied in the field of rapid prototyping, can solve the problems of expensive introduction, slow response, unsatisfactory equipment manufacturing precision, etc., achieve high efficiency and reduce equipment cost

Active Publication Date: 2013-12-18
SHAOXING FAST REAL ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the introduction of key equipment of rapid prototyping technology is expensive, and the disadvantages of high equipment maintenance price and slow response
However, the production accuracy of low-priced equipment is very unsatisfactory. For example, the equipment costing about 1,500 US dollars has an accuracy of about 0.25mm.

Method used

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  • Surface molded 3D (Three Dimensional) printing method and system
  • Surface molded 3D (Three Dimensional) printing method and system
  • Surface molded 3D (Three Dimensional) printing method and system

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Embodiment Construction

[0035] The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments.

[0036] Such as figure 1 As shown, the surface forming 3D printing method of this embodiment includes the following steps:

[0037] S1. Carry out 3D modeling of the product to be printed, and divide the built 3D model into multi-layer cross-sectional graphics. 3D modeling can be made by various existing commercial software. Taking CAD as an example, the 3D model can be made through CAD and stored in the form of STL file, and then slice the STL file to obtain multi-layer interface graphics. The number of cut surfaces is related to the size of the product to be printed, and it is preferable to control the printing thickness of each layer within the range of 10-100 microns to ensure printing accuracy.

[0038] S2. Install a predetermined amount of liquid light-curing material in the liquid tank, place the printing platform in ...

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Abstract

The invention discloses a surface molded 3D (Three Dimensional) printing method and system. The method comprises the following steps: S1, carrying out 3D modeling on a product to be printed, and dividing a three-dimensional model into a plurality of layers of section diagrams; S2, filling a liquid-state photo-curing material with a pre-set quantity into a liquid containing box, and placing a printing platform in the liquid containing box, wherein the printing platform is located below the liquid level of the liquid-state photo-curing material, and the distance between the initial position of the printing platform and the liquid level of the liquid-state photo-curing material is equal to single-layer printing thickness; S3, projecting the first layer of the section diagram to the printing platform by virtue of digital mini-type lens equipment so as to form a first layer section part by curing the liquid-state photo-curing material above the printing platform; S4, controlling the printing platform to move downwards in a distance equal to the single-layer printing thickness, then, projecting a second layer of the section diagram for printing to form a second layer section part of the product, and circularly controlling the printing platform and the digital mini-type lens equipment until the product is printed. The surface molded 3D printing method and system have the advantages of high efficiency, high precision and low cost.

Description

technical field [0001] The invention relates to the technical field of rapid prototyping, in particular to a surface forming 3D printing method and system. Background technique [0002] 3D printing (3D Printing) was first proposed by Jim Bred and Tim Anderson of the Massachusetts Institute of Technology. They designed a device that can bond powder based on an ordinary inkjet printer, which became the earliest 3D printer. In March 2009, at the Roadmap for Additive Manufacturing (RAM) Workshop held in Washington, USA, it was officially determined to use the term Additive Manufacturing (AM) to refer to 3D printing technology. , and made a plan for the development of rapid prototyping technology in the next 10 years. At present, the main laminated manufacturing technologies include Selective laser sintering (SLS), Stereolithography (SLA), Fused Deposition Modeling (FDM) )wait. Selective laser sintering technology uses high-energy laser beams to sinter various powder materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00
Inventor 张靖金良宋轩王彬潘亚月
Owner SHAOXING FAST REAL ELECTRONICS TECH CO LTD
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