A detection and control method of resin liquid‐level of stereolithography apparatus
Abstract
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
Citation
Wang, Y., Zhao, W., Ding, Y., He, Z. and Lu, B. (2009), "A detection and control method of resin liquid‐level of stereolithography apparatus", Rapid Prototyping Journal, Vol. 15 No. 5, pp. 333-338. https://doi.org/10.1108/13552540910993851
Publisher
:Emerald Group Publishing Limited
Copyright © 2009, Emerald Group Publishing Limited