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Method and system of adjusting light intensity of light source of 3D printer dynamically

A 3D printer, dynamic adjustment technology, applied in the field of 3D printing, can solve the problem that the light intensity of the light source is difficult to adjust

Inactive Publication Date: 2020-05-26
深圳优维度科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method and system for dynamically adjusting the light intensity of the light source of a 3D printer, which solves the problem that the light intensity of the light source is difficult to adjust in the curing stage of the traditional 3D printer, and realizes the dynamic adjustment of the light intensity of the light source

Method used

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  • Method and system of adjusting light intensity of light source of 3D printer dynamically
  • Method and system of adjusting light intensity of light source of 3D printer dynamically
  • Method and system of adjusting light intensity of light source of 3D printer dynamically

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Embodiment 1

[0023] Embodiment 1: see figure 1 , Embodiment 1 of the present invention provides a method for dynamically adjusting the light intensity of a 3D printer light source, which is suitable for execution in a microprocessor. Preferably, the method is implemented by a single-chip microcomputer. The method includes steps:

[0024] S10, importing the 3D data of the model;

[0025] S20. Slicing the 3D data of the model according to the preset printing layer thickness, and storing all layer section data after slicing processing; specifically, in order to ensure the printing accuracy and speed, the printing layer thickness range is selected as 0.01mm -0.1mm, and it should be noted that step S20 and subsequent steps can be carried out independently, that is, the user can choose to proceed to the next operation step before S20 is completed, so as to realize the slicing and printing of the 3D model at the same time ;

[0026] S30. Extracting the layer section data that needs to be cured ...

Embodiment 2

[0035] Example 2: see figure 2 , a system for dynamically adjusting the light intensity of a 3D printer light source, including a microcontroller loaded with the above-mentioned method for dynamically adjusting the light intensity of a 3D printer light source, a light source control circuit and a DC power supply, the light source control circuit is used to realize the light source The light intensity is adjusted, the DC power supply is electrically connected to the light source control circuit, and the output terminal of the microcontroller is electrically connected to the light source control circuit.

[0036] The light source control circuit includes a second resistor R2, an N-type MOS transistor Q1 and a lamp board, the positive pole of the lamp board is electrically connected to a DC power supply, the negative pole of the lamp board is electrically connected to the drain electrode of the N-type MOS transistor Q1 connected, the gate of the N-type MOS transistor Q1 is elect...

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Abstract

The invention discloses a method of adjusting light intensity of a light source of a 3D printer dynamically. The method comprises the following steps of importing 3D data of a model; carrying out slicing processing on the 3D data; carrying out analytical calculation to obtain a curve graph of time-varying light intensity needed to cure a photosensitive resin fully within an exposure time; obtaining a mean value of all light intensity corresponding to each dimming period within a single-layer curing time period according to the curve graph obtained in the previous step; obtaining a lighting-uptime period and a lighting-off time period corresponding to each period by calculation according to a pulse width modulation (PWM) dimming method; and outputting a pulse width modulation (PWM) signalto adjust the light intensity according to a calculation result of the previous step. The invention also discloses a novel system of adjusting the light intensity of the light source of the 3D printerdynamically. The novel system comprises a micro controller, a light source control circuit and a direct current power supply. The pulse width modulation (PWM) signal is output to the light source control circuit by the micro controller according to the method of adjusting the light intensity of the light source of the 3D printer dynamically, so that the light intensity of the light source is adjusted dynamically.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a method and system for dynamically adjusting the light intensity of a light source of a 3D printer. Background technique [0002] 3D printing is a rapid prototyping technology that uses some adhesive materials to construct models by layer-by-layer printing; however, the light intensity of the light source of the existing 3D printers is mostly not adjustable, when different models need to be printed At the same time, the printer needs to adjust the curing time multiple times, and the curing time is too long or too short, which will cause the quality of the printed product to be unsatisfactory. Therefore, if the light intensity of the light source of the 3D printer can be dynamically adjusted, the traditional printer can be solved Difficult to adjust light intensity. Contents of the invention [0003] The purpose of the present invention is to provide a method and system fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/264B29C64/393B33Y30/00B33Y50/02
CPCB33Y30/00B33Y50/02B29C64/264B29C64/393
Inventor 裴明巍
Owner 深圳优维度科技股份有限公司
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