Improve Cutting Skill According to Skill and Difficulty Level

Abstract

In this paper, we aim to measure the cutting skill for creative paper cutting and increase practice effect. The practice effect changes according to the difficulty level of the cutting pattern and the skill level of the user. The cutting pattern of the picture consists of a straight line and a curved line, and we generalized the index of difficulty (ID) based on Steering law. One of cutting skills that shows the difference between novices and experts is time to cut. Besides, we developed a system consisting of a drawing display and a stylus with a knife to measure the cutting movement times (MT). The system measures MT according to the ID of the cutting pattern. We confirmed skill improvements by measuring changes in MT with various patterns from three experiments. In test 1, we confirmed the degree of conformity between the straight and curve pattern based on the steering law. In test 2, we measured skill improvement in repeatedly cutting patterns. In test 3, we compared the change in skill improvement of novices and artists. In these tests, we measured the reduction rate of MT to investigate the effectiveness of practice with various ID. As a result, we confirmed the difference in practice efficacy according to each ID.