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CSME 2024/08
Volume 45 No.4
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397-402
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Development of LCD Projection-type Three-dimensional Continuous Printing System
Shih Hao Huanga, Cho-Pei Jiangb and Maziar Ramezanic
aGraduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei, Taiwan 10608
bDept. of Mechanical Engineering, National Taipei University of Technology, Taipei, Taiwan 10608
cDepartment of Mechanical Engineering, Auckland University of Technology, 55 Wellesley Street, East Auckland City, New Zealand
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Abstract:
Vat photopolymerization (VP) technology is one of additive manufacturing (AM), commonly known as 3D printing, utilizes the light with proper wavelength to expose the photocurable resin inducing solidifica-tion by photopolymerization reaction. The existing AM machines face limitations in achieving mass pro-duction as they are designed for single-product output. This study proposes an innovative VP-based approach incorporating a liquid crystal display (LCD) to gener-ate digital dental model slices. These slices undergo solidification using specific wavelengths, resulting in the creation of resin dental models through layered solidification. This study presents a groundbreaking continuous printing method that seamlessly integrates VP technology, post-processing, and storage. The primary objective is to facilitate the mass production of dental molds. The system comprises a storage unit capable of accommodating 24 models, a 13.3-inch LCD for simultaneous printing of six models, a mag-netic stirring cleaning area, a 405 nm backlight unit, and an integrated human-machine interface developed in-house. This setup demonstrates the capability to produce 144 customized dental models suitable for sequential braces. Experimental results validates that the developed system is a comprehensive solution for the mass production of customized dental models. This advancement not only significantly reduces the involvement of staff but also streamlines the overall production time. The incorporation of a standardized and stabilized human-machine interface further enhances the customization process, marking a signif-icant step forward in the field of dental model manufacturing.
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Keywords: Additive Manufacturing, Vat Photopolymerization, Dynamic Masking, Continuous Production.
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*Corresponding author; e-mail:
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©
2024
CSME , ISSN 0257-9731
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