A continues multi-material toolpath planning for tissue scaffolds with hollowed features

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Özbolat, İbrahim T. and Koç, Bahattin (2011) A continues multi-material toolpath planning for tissue scaffolds with hollowed features. Computer-Aided Design and Applications, 8 (2). pp. 237-247. ISSN 1686-4360

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Abstract

This paper presents a new multi-material based toolpath planning methodology for porous tissue scaffolds with multiple hollowed features. Ruled surface with hollowed features generated in our earlier work is used to develop toolpath planning. Ruling lines are reoriented to enable continuous and uniform size multi-material printing through them in two steps. Firstly, all ruling lines are matched and connected to eliminate start and stops during printing. Then, regions with high number of ruling lines are relaxed using a relaxation technique to eliminate over deposition. A novel layer-by-layer deposition process is progressed in two consecutive layers: The first layer with hollow shape based zigzag pattern and the next layer with spiral pattern deposition. Heterogeneous material properties are mapped based on the parametric distances from the hollow features.
Item Type: Article
Uncontrolled Keywords: Solid Freeform Fabrication, Toolpath Planning, Tissue Scaffolds, Multi-material Printing
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA164 Bioengineering
Divisions: Faculty of Engineering and Natural Sciences
Faculty of Engineering and Natural Sciences > Academic programs > Manufacturing Systems Eng.
Depositing User: Bahattin Koç
Date Deposited: 02 Jan 2012 22:25
Last Modified: 26 Apr 2022 08:53
URI: https://research.sabanciuniv.edu/id/eprint/18351

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