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Self-adaption layering method of 3D printing

A 3D printing and adaptive technology, applied in the field of 3D printing, can solve the problems of low precision of layered contour data and low layering efficiency, and achieve the effect of improving layering efficiency and reliable data support

Active Publication Date: 2015-04-08
SHINING 3D TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of low layering efficiency and low accuracy of layered profile data in the adaptive layering method in the prior art, and provide a layered profile with high layering efficiency and high precision An adaptive layering approach for 3D printing of data

Method used

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  • Self-adaption layering method of 3D printing

Examples

Experimental program
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Embodiment 1

[0039] Such as Figure 4 The illustrated embodiment is an adaptive layering method for 3D printing, comprising the following steps:

[0040] Step 100, storing the STL model data of the sphere W to be printed in the computer, the STL model data includes 1000 triangular faces F i (i∈1000), the normal vector n corresponding to each triangle i , the height range interval corresponding to each triangle patch [Z i0 ,Z i1 ];

[0041] Step 200, the computer reads the STL model data, and calculates each maximum value Z of 1000 height range intervals i1 , each minimum value Z i0 The total minimum value Z in min and total maximum Z max ;

[0042] Step 300, the computer reads the normal vector n of each triangle surface i , set the layering direction as the positive direction of the Z axis, the unit direction vector of the Z axis is Z(0,0,1), and the computer uses the formula Calculate n triangular faces F respectively i The angle α between the normal vector of and the positive...

Embodiment 2

[0057] In embodiment 2, use h i =a 1 alpha i +b 1 instead of in Example 1 Among them, a 1 is 0.7, b 1 Be 0.1 millimeter; Other steps in the embodiment 2 are partly the same as in the embodiment 1.

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Abstract

The invention discloses a self-adaption layering method of 3D printing. The self-adaption layering method comprises the following steps: in a process that STL (Standard Template Library) model data is read, calculating layering height corresponding to a triangular patch according to a normal vector of each triangular patch; subsequently, according to the layering height of each triangular patch, calculating optimal layering height within any height range in a vertical direction, and establishing a layering height table (HT); and inquiring the HT to obtain the layering height required for a subsequent layering operation. The self-adaption layering method has the characteristics that layering efficiency is improved, high-precision layering outline data can be obtained, and reliable data support is provided for the high-efficiency and high-precision printing of a 3D printer.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to an adaptive layering method for 3D printing that has high layering efficiency and can obtain high-precision layered profile data. Background technique [0002] In the field of 3D printing (rapid prototyping) technology, the FDM (Fused Deposition Modeling) process is a layered manufacturing technology. In each layer of the model, the heating nozzle is used to melt the material inside the nozzle, and the thermal fuse is extruded. The accumulation of materials finally realizes the manufacture of the model. In this process, the data for controlling the working plane of the printer is obtained by slicing the three-dimensional model data (STL model data). Usually, the method of equal layer thickness layering is adopted, such as figure 1 shown. [0003] During the slicing process, the choice of slicing method and slice layer thickness has a great influence on slicing efficiency, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/12G06F17/50G06T19/00B29C67/00
CPCB29C64/00G06F30/367
Inventor 唐庭阁赵晓波高鹏王海炳
Owner SHINING 3D TECH CO LTD
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