LeviProps: Animating Levitated Optimized Fabric Structures using Holographic Acoustic Tweezers
summary
LeviProps uses acoustically transparent fabric with glued beads as levitated anchors to produce controllable mid-air shapes, claiming up to 9 cm fabric levitation with one bead and 6 degrees of freedom control when using three or more beads. An authoring tool uses simulated annealing to pick bead positions that can change stiffness by up to five times with millimeter shifts; designs are laser-cut and assembled by gluing beads. Demonstrations include rotating rockets, a two-object pong (limited to two simultaneous props), and a flapping butterfly; manipulation works but scale and simultaneous-object count remain constrained.
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chapters (16)
- 0:00Intro
- 0:37Using beads as anchors
- 1:08Related Work
- 2:38Trapping stiffness
- 3:18LEVIProps' contributions
- 4:26Evaluation of the beads position
- 7:46Defining LEVIProps: Primitives
- 8:29Base Primitive
- 8:46Left wing Primitive
- 9:15Right wing Primitive
- 9:47Building a LEVIProp
- 11:06Software Tool
- 11:27Fabrication
- 13:02Proof-of-concept
- 13:57Limitations
- 15:03Summary
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