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Make It Stand: Balancing Shapes for 3D Fabrication

Romain Prévost 1, 2 Emily Whiting 2 Sylvain Lefebvre 3 Olga Sorkine-Hornung 2 
3 ALICE - Geometry and Lighting
Inria Nancy - Grand Est, LORIA - ALGO - Department of Algorithms, Computation, Image and Geometry
Abstract : Imbalance suggests a feeling of dynamism and movement in static objects. It is therefore not surprising that many 3D models stand in impossibly balanced configurations. As long as the models remain in a computer this is of no consequence: the laws of physics do not apply. However, fabrication through 3D printing breaks the illu- sion: printed models topple instead of standing as initially intended. We propose to assist users in producing novel, properly balanced designs by interactively deforming an existing model. We formu- late balance optimization as an energy minimization, improving sta- bility by modifying the volume of the object, while preserving its surface details. This takes place during interactive editing: the user cooperates with our optimizer towards the end result. We demon- strate our method on a variety of models. With our technique, users can produce fabricated objects that stand in one or more surprising poses without requiring glue or heavy pedestals.
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Submitted on : Friday, January 10, 2014 - 1:48:18 PM
Last modification on : Saturday, October 16, 2021 - 11:26:06 AM

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Romain Prévost, Emily Whiting, Sylvain Lefebvre, Olga Sorkine-Hornung. Make It Stand: Balancing Shapes for 3D Fabrication. ACM Transactions on Graphics, Association for Computing Machinery, 2013, SIGGRAPH 2013 Conference Proceedings, 32 (4), pp.Article No. 81. ⟨10.1145/2461912.2461957⟩. ⟨hal-00926855⟩

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