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Multilevel Design for the Interior of 3D Fabrications

Department of Computer Science and Engineering, Sejong University, Seoul 143-747, Korea
Author to whom correspondence should be addressed.
Symmetry 2019, 11(8), 1029;
Received: 22 July 2019 / Revised: 31 July 2019 / Accepted: 6 August 2019 / Published: 9 August 2019
PDF [14960 KB, uploaded 13 August 2019]


This article presents a multilevel design for infill patterns. The method partitions an input model into subareas and each subarea are applied with different scales of infill patterns. The number of subareas can be decided by users. For each subarea, there are different values of the scaling parameter that determines the number of columns and rows of pattern elements, which is useful to change the weight and strength of a certain area by user demands. Subareas can be symmetric or asymmetric to each other depending on the geometry of a 3D model and the application requirements. In each subarea, there are generated symmetric patterns. The proposed method is also applicable to combining different patterns. The aim of our work is to create lightweight 3D fabrications with lighter interior structures to minimize printing materials and supplementary to strengthen thin parts of objects. Our approach allows for the composition of sparse and dense distributions of patterns of interior 3D fabrications in an efficient way so users can fabricate their own 3D designs. View Full-Text
Keywords: 3D fabrication; subdivision; pattern; multilevel design 3D fabrication; subdivision; pattern; multilevel design

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Chynybekova, K.; Choi, S.-M. Multilevel Design for the Interior of 3D Fabrications. Symmetry 2019, 11, 1029.

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