Abstract
The laminating direction is important when we output an object measured by a system that can perform multi-directional mass simultaneous measurement by using a 3D printer. This is because the original edge shapes of output model may not be reproduced depending on laminating directions. Some methods have been proposed to evaluate reproducibility of edge shapes according to the direction and area of polygons, but they do not reproduce edge shapes but the whole model shape, so the edge shapes might be lost. In this study, according to the polygon models generated from measured points, we examine a method to evaluate the best posture so as to maintain the edge shapes of the original lamination model generated by the laminating method. We use relic models like flakes of chipped stone tools measured by the multi-directional mass simultaneous measurement system. Our method extracts the boundary edges on stripped surfaces from a polygon model. By comparing the extracted edge shapes to those generated by the laminating method, both shapes are evaluated. We have applied our method to some models and confirmed the effectivity of the method.