Development of BrushDevice facilitating painting operation in 2D/3D space

We have proposed a set of devices for various manipulations in spatial works. The devices use a metaphor of existing tools which are familiar in everyday life. Such tools have good affordance, and at the same time, every user already has a mental model for their operation. We believe that such advantages not only lead users to the correct operation, but provide an intuitive operation. Initially, we realized tweezers device for pick-and-move manipulation in the spatial works. Now, we have developed brush device for painting in 2D/3D space. This paper describes the design, mechanism, prototype, pilot test, and findings.