Volume decomposition for two-piece rigid casting

Thomas Alderighi

doi:10.1145/3478513.3480555

Volume decomposition for two-piece rigid casting

2021-12-10

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DOI：10.1145/3478513.3480555

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Abstract

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We introduce a novel technique to automatically decompose an input object's volume into a set of parts that can be represented by two opposite height fields. Such decomposition enables the manufacturing of individual parts using two-piece reusable rigid molds. Our decomposition strategy relies on a new energy formulation that utilizes a pre-computed signal on the mesh volume representing the accessibility for a predefined set of extraction directions. Thanks to this novel formulation, our method allows for efficient optimization of a fabrication-aware partitioning of volumes in a completely automatic way. We demonstrate the efficacy of our approach by generating valid volume partitionings for a wide range of complex objects and physically reproducing several of them.

Keywords:

double height field

volumetric decomposition

casting

Volume decomposition for two-piece rigid casting

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