Abstract
In this study, a new sharpening technique is proposed from the standingpoint of ergonomics and psychology.
First, I obtained the information regarding visual perception by using a stereomicroscope. It enables us to perform the sharpening of hand instruments with better viewing the manipulate task in the small area. In addition, a perceptual-motor learning becomes possible by the new technique, which leads to the improved motor skill for sharpening techniques.
Secondly, the efficiency of the sharpening can be increased by using a small sized rotating stones and an electric engine. A stable manipulate task is also obtained by having proper fulcrums, and therefore, motion tremor which had been caused by the standard sharpening procedure decreases drastically.
