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Journal Articles ACM Transactions on Graphics Year : 2013

Make It Stand: Balancing Shapes for 3D Fabrication


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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hal-00926855 , version 1 (10-01-2014)



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