Patent ID: 7110852

Claim:
A mold processing method using a processing tool, comprising the steps of: preparing V-CAD data obtained by dividing external data consisting of boundary data of an object into rectangular parallelepiped cells having boundary planes orthogonal to each other in accordance with octree division and separating respective divided cells into internal cells positioned on an inner side or on an outer side of the object and boundary cells including a boundary face; and generating mold data and mold processing data used for manufacturing of the object, from data of a reference plane which at least partially comes into contact with the object and from the V-CAD data, wherein, in the mold processing data, a plurality of processing tools are selected in descending order of a size in accordance with sizes of the internal cells of a processing portion, and a processing tool from the plurality of processing tools is moved in a plane of a mold and in a thickness direction, thereby processing the mold.