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A Direct Tool Path Planning Algorithm for Line Scanning Based Stereolithography

[+] Author Affiliations
Chi Zhou

University at Buffalo, the State University of New York, Buffalo, NY

Paper No. IMECE2014-37322, pp. V02AT02A006; 12 pages
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 2A: Advanced Manufacturing
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4643-8
  • Copyright © 2014 by ASME


This paper presents a novel tool path planning approach for polygonal mirror scanning based Stereolithography (SL) process. Compared with traditional laser scanning and mask projection based SL process, the polygonal mirror scanning based process can build part with high surface quality and precision without losing the fabrication efficiency. As an emerging additive manufacturing process, no efficient tool path planning algorithm is available in current system. This paper presented a direct tool path planning algorithm without converting the 3-Dimentional model into 2-Dimentional contours. Different test cases are used to verify its efficiency and effectiveness. Compared with the commercial software, the proposed algorithm is several times faster. Physical parts are also built using the tool path generated by the proposed algorithm.

Copyright © 2014 by ASME



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