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Self-supporting parametric polyhedral structure for 3D printing
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AI
DOI：10.1016/j.advengsoft.2023.103529.png)
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Abstract
En 中文
In this work, a novel method is proposed to design light-weight infill structure based on polyhedral cells for 3D printing, which satisfies the self-supporting, manufacturability and structural strength. To achieve self-supporting, specified filling rate and wall thickness, the parameters of the parametric polyhedral cell are determined by stress optimization. Especially, the number of cells, their centroid and thickness are optimized to support the fabrication of overhanging inner surface and improve the mechanical properties of the fabricated product. Moreover, the cross-sections of the infill structure consist of only simple geometric shapes, which are easy to be fabricated. The proposed method has been evaluated on extensive 3D shapes and the fabricated objects are physically tested to demonstrate its effectiveness.
Keywords:
Structural optimization
Light-weight structure
Self-supporting
3D printing
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