1. Translation of a spherical object.
Translation of a spherical object. The soft ring oscillator rolls a ball on an elastomeric track. The track relies on sequential inflation of serially arranged elastomeric chambers to translate objects (A). A circular track can roll a ball indefinitely; the schematic illustrates a completely soft design of a circular track with 30 internal chambers (B), which we used in an experimental demonstration shown here (C) and in movie S3.
Daniel J. Preston et al. Sci. Robotics 2019;4:eaaw5496
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