Optimal discrete slicing

Marc Alexa 1 Kristian Hildebrand 1 Sylvain Lefebvre 2
2 ALICE - Geometry and Lighting
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Slicing is the procedure necessary to prepare a shape for layered manufacturing. There are degrees of freedom in this process, such as the starting point of the slicing sequence and the thickness of each slice. The choice of these parameters influences the manufacturing process and its result: The number of slices significantly affects the time needed for manufacturing, while their thickness affects the error. Assuming a discrete setting, we measure the error as the number of voxels that are incorrectly assigned due to slicing. We provide an algorithm that generates, for a given set of available slice heights and a shape, a slicing that is provably optimal. By optimal, we mean that the algorithm generates sequences with minimal error for any possible number of slices. The algorithm is fast and flexible, that is, it can accommodate a user driven importance modulation of the error function and allows the interactive exploration of the desired quality/time tradeoff. We demonstrate the practical importance of our optimization on several three-dimensional-printed results.
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Article dans une revue
ACM Transactions on Graphics, Association for Computing Machinery, 2017, 36 (1), pp.1 - 16. 〈10.1145/2999536〉
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Marc Alexa, Kristian Hildebrand, Sylvain Lefebvre. Optimal discrete slicing. ACM Transactions on Graphics, Association for Computing Machinery, 2017, 36 (1), pp.1 - 16. 〈10.1145/2999536〉. 〈hal-01660773〉

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