Freely orientable microstructures for designing deformable 3D prints
Technical Papers Q&A
TimeFriday, 11 December 202012:48 - 12:54 SGT
LocationZoom Room 4
DescriptionNature offers a marvel of astonishing and rich deformation behaviors. Yet,
most of the objects we fabricate are comparatively rather inexpressive, either
rigid or exhibiting simple homogeneous deformations when interacted with.
We explore the synthesis and fabrication of novel microstructures that
mimic the effects of having oriented rigid fibers in an otherwise flexible
material: the result is extremely rigid along a transverse direction while
being comparatively very flexible in the locally orthogonal plane. By allowing
free gradation of the rigidity direction orientation within the object, the
microstructures can be designed such that, under deformation, distances
along fibers in the volume are preserved while others freely change. Through
a simple painting tool, this allows a designer to influence the way the volume
reshapes when deformed, and results in a wide range of novel possibilities.
Many gradations are possible: local free orientation of the fibers; local control
of the overall material rigidity (structure density); local canceling of the effect
of the fibers, obtaining a more isotropic material.
Our algorithm to synthesize the structures builds upon procedural texturing.
It produces a cellular geometry that can be fabricated reliably despite
3D printing walls at a minimal thickness, allowing prints to be very flexible.
The synthesis algorithm is efficient, and scales to large volumes.