Abstract
Soft robots have the potential to solve problems that
cannot be addressed using hard rigid robots such as
harsh sounds from mechanical structures, structure
weight, inefficient structures, and potential risks due to
human-robot interactions. Soft sensors play an essential
role in developing soft robots. Examples include strain,
bending, and touch sensors. Soft strain sensors consist
of elastomer and stretchable electrodes. Recently, many
innovative solutions have been promoted to fabricate
stretchable electrodes, including pad-printing,
Langmuir-Schaefer (LS), supersonic cluster beam
(SCB), and manual direct brushing method of carbon
powder. Herein we fabricate stretchable electrodes
simply, reliably, and economically using an automatic
brushing machine (ABM). Our technique requires threeaxis
machine tools to perform automatic brushing. An
ABM can realize stretchable electrodes with a reliable
quality. Moreover, the quality of the stretchable
electrodes is controllable by selecting the appropriate
type of elastomer. The ABM is suitable for future mass
production of stretchable electrodes.
