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Path Planning for Functionally Graded Materials in Hollow Tissue Scaffold Printing

[+] Author Affiliations
Ibrahim T. Ozbolat

The University of Iowa, Iowa City, IA

Paper No. IMECE2011-62024, pp. 49-53; 5 pages
doi:10.1115/IMECE2011-62024
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 3: Design and Manufacturing
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5489-1
  • Copyright © 2011 by ASME

abstract

This study proposes a new path planning methodology to control functionally graded materials in hollowed scaffold printing for tissue engineering. Based on ruled surface construction from our earlier work [1], ruling lines are postprocessed for continuous path planning with uniform material deposition. Besides, arc fitting is used to reduce over-deposition by enabling non-stop deposition at the sharp turns. Layer-by-layer deposition is progressed through consecutive layers of ruling line based zigzag pattern followed by a biarc fitted spiral pattern. Functionally graded material properties are then mapped based on parametric distances from hollow features.

Copyright © 2011 by ASME

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