METHOD OF CORRECTING THICKNESS OF EXCESSIVE CURING OF PHOTOMOLDED ARTICLE AND APPARATUS THEREFOR

摘要

A photomolding method and an apparatus therefor, in which an ultraviolet curing resin is cured by laser radiation to form a three-dimensional model of resin. A dimensional deviation in surface shape data is automatically corrected in such a manner that in order to automatically correct a dimensional deviation, which is produced in excessive curing by a laser transmitted light, by automatically detecting overhang portions and a bottom surface of a molded article in surface shape data, apexes of a polygonal patch which constitutes the surface shape data are replaced by nodes, and those nodes which constitute the polygonal patch positioned at the bottom surface of the overhang portions are moved an amount of correction obtained from a value according to an inclination of the polygonal patch surface to modify configuration and position of the polygonal patch, and molding is effected on the basis of the resulting data.