TY - JOUR
T1 - Build-to-last
T2 - 41st International Conference and Exhibition on Computer Graphics and Interactive Techniques, ACM SIGGRAPH 2014
AU - Lu, Lin
AU - Sharf, Andrei
AU - Zhao, Haisen
AU - Wei, Yuan
AU - Fan, Qingnan
AU - Chen, Xuelin
AU - Savoye, Yann
AU - Tu, Changhe
AU - Cohen-Or, Daniel
AU - Chen, Baoquan
N1 - Funding Information: We thank the reviewers for their valuable suggestions, Qiannan Li for video editing, and Maggie Chen for video narration. This work was partially supported by grants from NSFC (61202147, 61025012, 61332015, U1035004), Israel Science Foundation and European FP7. Lin Lu and Changhe Tu are also from Engineering Research Center of Digital Media Technology, Ministry of Education of PRC.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - The emergence of low-cost 3D printers steers the investigation of new geometric problems that control the quality of the fabricated object. In this paper, we present a method to reduce the material cost and weight of a given object while providing a durable printed model that is resistant to impact and external forces. We introduce a hollowing optimization algorithm based on the concept of honeycomb-cells structure. Honeycombs structures are known to be of minimal material cost while providing strength in tension. We utilize the Voronoi diagram to compute irregular honeycomb-like volume tessellations which define the inner structure. We formulate our problem as a strength-to-weight optimization and cast it as mutually finding an optimal interior tessellation and its maximal hollowing subject to relieve the interior stress. Thus, our system allows to build-to-last 3D printed objects with large control over their strength-to-weight ratio and easily model various interior structures. We demonstrate our method on a collection of 3D objects from different categories. Furthermore, we evaluate our method by printing our hollowed models and measure their stress and weights.
AB - The emergence of low-cost 3D printers steers the investigation of new geometric problems that control the quality of the fabricated object. In this paper, we present a method to reduce the material cost and weight of a given object while providing a durable printed model that is resistant to impact and external forces. We introduce a hollowing optimization algorithm based on the concept of honeycomb-cells structure. Honeycombs structures are known to be of minimal material cost while providing strength in tension. We utilize the Voronoi diagram to compute irregular honeycomb-like volume tessellations which define the inner structure. We formulate our problem as a strength-to-weight optimization and cast it as mutually finding an optimal interior tessellation and its maximal hollowing subject to relieve the interior stress. Thus, our system allows to build-to-last 3D printed objects with large control over their strength-to-weight ratio and easily model various interior structures. We demonstrate our method on a collection of 3D objects from different categories. Furthermore, we evaluate our method by printing our hollowed models and measure their stress and weights.
KW - 3D printing technologies
KW - Porous structure design
KW - Solid object hollowing
KW - Volume-Voronoi shape
UR - http://www.scopus.com/inward/record.url?scp=84905725547&partnerID=8YFLogxK
U2 - 10.1145/2601097.2601168
DO - 10.1145/2601097.2601168
M3 - Conference article
SN - 0734-2071
VL - 33
JO - ACM Transactions on Graphics
JF - ACM Transactions on Graphics
IS - 4
M1 - 97
Y2 - 10 August 2014 through 14 August 2014
ER -