Microstructures to control elasticity in 3D printing

C. Schumacher, B. Bickel, J. Rys, S. Marschner, C. Daraio, M. Gross, in:, ACM, 2015, p. 136.

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Conference Paper | Published | English
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Abstract
We propose a method for fabricating deformable objects with spatially varying elasticity using 3D printing. Using a single, relatively stiff printer material, our method designs an assembly of smallscale microstructures that have the effect of a softer material at the object scale, with properties depending on the microstructure used in each part of the object. We build on work in the area of metamaterials, using numerical optimization to design tiled microstructures with desired properties, but with the key difference that our method designs families of related structures that can be interpolated to smoothly vary the material properties over a wide range. To create an object with spatially varying elastic properties, we tile the object's interior with microstructures drawn from these families, generating a different microstructure for each cell using an efficient algorithm to select compatible structures for neighboring cells. We show results computed for both 2D and 3D objects, validating several 2D and 3D printed structures using standard material tests as well as demonstrating various example applications.
Publishing Year
Date Published
2015-08-01
Acknowledgement
The Walt Disney Company
Volume
34
Issue
4
Article Number
136
Conference
SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques
Conference Location
Los Angeles, CA, USA
Conference Date
2015-08-09 – 2015-08-13
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Schumacher C, Bickel B, Rys J, Marschner S, Daraio C, Gross M. Microstructures to control elasticity in 3D printing. In: Vol 34. ACM; 2015:136. doi:10.1145/2766926
Schumacher, C., Bickel, B., Rys, J., Marschner, S., Daraio, C., & Gross, M. (2015). Microstructures to control elasticity in 3D printing (Vol. 34, p. 136). Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, USA: ACM. https://doi.org/10.1145/2766926
Schumacher, Christian, Bernd Bickel, Jan Rys, Steve Marschner, Chiara Daraio, and Markus Gross. “Microstructures to Control Elasticity in 3D Printing,” 34:136. ACM, 2015. https://doi.org/10.1145/2766926.
C. Schumacher, B. Bickel, J. Rys, S. Marschner, C. Daraio, and M. Gross, “Microstructures to control elasticity in 3D printing,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, USA, 2015, vol. 34, no. 4, p. 136.
Schumacher C, Bickel B, Rys J, Marschner S, Daraio C, Gross M. 2015. Microstructures to control elasticity in 3D printing. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques vol. 34. 136.
Schumacher, Christian, et al. Microstructures to Control Elasticity in 3D Printing. Vol. 34, no. 4, ACM, 2015, p. 136, doi:10.1145/2766926.

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