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Volume 15, Issue 5
25 September 2009
Rapid Prototyping Journal Cover Image for Volume 15, Issue 5
Research Article| September 25 2009

A detection and control method of resin liquid‐level of stereolithography apparatus Available to Purchase

Yiqing Wang;
Yiqing Wang
State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China
Yiqing Wang can be contacted at: wyq1102@163.com
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Wanhua Zhao;
Wanhua Zhao
State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China
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Yucheng Ding;
Yucheng Ding
State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China
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Zhongyun He;
Zhongyun He
State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China
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Bingheng Lu
Bingheng Lu
State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China
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Author & Article Information
Yiqing Wang can be contacted at: wyq1102@163.com
Publisher: Emerald Publishing
Online ISSN: 1758-7670
Print ISSN: 1355-2546
© Emerald Group Publishing Limited
2009
Rapid Prototyping Journal (2009) 15 (5): 333–338.
https://doi.org/10.1108/13552540910993851
Purpose

The purpose of this paper is to detect and control the liquid‐level of stereolithography apparatus precisely.

Design/methodology/approach

A brightness‐variable laser source is adopted to remove the computational error of divider and a closed‐loop circuit is set to measure the terminal voltage directly proportional to the output current of photosensitive devices. It employs a sinking‐block device to control the liquid‐level.

Findings

The precise calibration result of this detecting device indicates that the resolution of the liquid‐level detection can reach ±1.5 μm.

Originality/value

This sinking‐block style liquid‐level control device can allow for the liquid‐level wave reduced from ±45 to ±15 μm.

Keywords:
Rapid prototypes, Lasers, Liquids, Resins
© Emerald Group Publishing Limited
2009
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