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Proceedings of CAD'17, 2017, 1-4
Bevel Joint Modeling for Interlocking Planner Structures

Zhilong Su, Xiaoyuan He, Southeast University, China
Lujie Chen, Singapore University of Technology and Design, Singapore

Abstract. Design of prototypes has been increasingly emphasized by designers to achieve physical production of higher quality at a lower cost. The application of digital fabrication machines, such as 3D printer, laser cutter and CNC machines etc., make it possible to fabricate models in rapid and inexpensive ways than using hand-held tools. However, methods are needed to process raw digital input/model to produce a set of components that are compatible for digital fabrication. Several approaches have been proposed by converting 3D digital model into planar physical components. This paper describes a new modeling method that generates a planar interlocking structure with bevel joints for multi-planar models. Taking a 3D triangle mesh as input, a group of planar component with bevel joints is generated by first merging a set of planar polygon from the given triangle meshes, and then by modeling the bevel joints for each planar component based on the included angle between its corresponding planar polygon and its adjacent polygon. The application of bevel joint connection between two components leads to physical structures that are seamless at their surface, which is also referred as watertight surface.

Keywords. Bevel joint, rapid prototyping, planner structures

DOI: 10.14733/cadconfP.2017.1-4