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Ramp compensation device and method for FDM type 3D printer platform during inclination

A technology of 3D printer and compensation method, applied in the field of 3D printing, can solve the problems of labor-intensive cost, height error affecting printing accuracy and quality, model skew, etc.

Active Publication Date: 2017-11-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Aiming at the above technical problems, the present invention aims to solve the problem that the height error of manual leveling affects the printing accuracy and quality, and consumes a lot of labor costs and simple automatic leveling only One direction compensates for the print height, which can cause problems such as model skew

Method used

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  • Ramp compensation device and method for FDM type 3D printer platform during inclination
  • Ramp compensation device and method for FDM type 3D printer platform during inclination
  • Ramp compensation device and method for FDM type 3D printer platform during inclination

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Embodiment 1

[0033] Such as figure 1 As shown, a slope compensation device for an FDM type 3D printer when the platform is tilted includes a horizontal support table 1, a heat bed 2 arranged on the horizontal support table 1, and a print head 3 located above the heat bed 2. The print head 3 is provided with a first distance measuring sensor 4 and a second distance measuring sensor 5 for measuring the height difference of the heated bed in the printing area of ​​the platform. It is arranged symmetrically to the center, and the mean value of the measured values ​​of the two ranging sensors is used as the final height difference.

[0034] Wherein, the first distance measuring sensor 4 and the second distance measuring sensor 5 are laser distance measuring sensors, which have the advantages of small size, fast detection and high precision, and are convenient to be installed on the print head 3 and move with the print head.

[0035] In this embodiment, the dual laser ranging sensors are symmet...

Embodiment 2

[0037] A slope compensation method based on the slope compensation device, comprising steps:

[0038] S1. Measure the height difference in the printing area through the distance measuring sensor device on the print head to obtain the contour line MN on the hot bed;

[0039] S2. Obtain printing parameters according to the contour line MN and the set actual printing range;

[0040] S3. Perform compensation printing layer by layer according to each printing parameter to obtain a horizontal base whose edge is parallel to the contour line MN.

[0041] Specifically, the step of measuring the height difference in the printing area through the distance measuring sensor device on the print head to obtain the contour line MN on the heating bed specifically includes:

[0042] S11. Move the print head, first determine a point M in the central area of ​​the hot bed through two laser ranging sensors, and measure the distance h between the print head and the printing plate 1 ;

[0043] S1...

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Abstract

The invention relates to a ramp compensation device for a FDM type 3D printer platform during inclination. The ramp compensation device comprises a horizontal supporting table, a hot bed arranged on the horizontal supporting table and a printing head located above the hot bed. A first distance measuring sensor and a second distance measuring sensor for measuring the height difference of the hot bed in a printing region are arranged on the printing head; the first distance measuring sensor and a second distance measuring sensor are arranged in central symmetry related to the printing head; and the mean value of measured values of the two distance measuring sensors is taken as the final height difference. The invention also discloses a ramp compensation method for the FDM type 3D printer platform during inclination. By performing printing compensation on corresponding height difference by analytical calculation to further establish a horizontal substrate, the problem that the quality of printout is affected as height error exists in a common 3D printer manual adjusting platform and a model deflects as the printing height is only compensated in only one direction by automatic leveling is solved.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a slope compensation device and method when the platform of an FDM 3D printer is tilted. Background technique [0002] The printing platforms of ordinary 3D printers on the market are mostly manually leveled, and height errors are very likely to cause the platform to be out of level and affect the quality of prints. There is also a semi-automatic leveling device on the market. Its mechanism is to use probes (sensors) to detect the height of each corner of the platform, and then use manual screwing of the platform nut to adjust the height. It takes repeated operations to make the platform level. , takes too much time and is less efficient. In addition, the few 3D printers with self-leveling platforms on the market have high requirements on the flatness of the platform, which makes the penetration rate of 3D printers with self-leveling platforms low. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/20B29C64/245B33Y30/00
CPCB33Y30/00Y02P10/25
Inventor 陈松茂吴展纯杨韬孙偲恺庞业忠李嘉慧
Owner SOUTH CHINA UNIV OF TECH
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