Projection-based printing has been proven to be an effective way to fabricate user defined complex structures in biomedical applications. Large-scale printing of this process remains a challenge due to the lack of light source with large irradiation area and long transmitting distances. This paper presents a novel method by using multi-step exposure for large-scale parts printing in projection-based printing system. The multi-step exposure method takes the advantage of using a serial of digital masks for exposure incrementally, thus can compensate the printing differences induced by unevenly distributed ultraviolet (UV) intensity. The system setup and printing characterization of the projection-based printing system are studied. The distribution of the UV light power density is measured and the relationship between the printed height and printing parameters are investigated. Then, a multi-step exposure method is proposed and followed by experimental validation. Results showed that the developed printing system with five-step exposure can be used for a relatively large-scale parts printing, and a relatively flat profile can be achieved. Thus, this method provides the potential ability to print large-scale objects for biomedical applications.
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ASME 2018 13th International Manufacturing Science and Engineering Conference
June 18–22, 2018
College Station, Texas, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5135-7
PROCEEDINGS PAPER
Development of a Multi-Step Exposure Method for Projection-Based Printing System Available to Purchase
Yancheng Wang,
Yancheng Wang
Zhejiang University, Hangzhou, China
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Deqing Mei,
Deqing Mei
Zhejiang University, Hangzhou, China
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Yue Wang
Yue Wang
Zhejiang University, Hangzhou, China
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Dai Xue
Zhejiang University, Hangzhou, China
Yancheng Wang
Zhejiang University, Hangzhou, China
Deqing Mei
Zhejiang University, Hangzhou, China
Yue Wang
Zhejiang University, Hangzhou, China
Paper No:
MSEC2018-6485, V001T05A004; 7 pages
Published Online:
September 24, 2018
Citation
Xue, D, Wang, Y, Mei, D, & Wang, Y. "Development of a Multi-Step Exposure Method for Projection-Based Printing System." Proceedings of the ASME 2018 13th International Manufacturing Science and Engineering Conference. Volume 1: Additive Manufacturing; Bio and Sustainable Manufacturing. College Station, Texas, USA. June 18–22, 2018. V001T05A004. ASME. https://doi.org/10.1115/MSEC2018-6485
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