Method of Making Three Dimensional Structures Using Electronic Drawing Data

摘要

A method of modeling a three dimensional object defined by electronic data includes obtaining electronic data defining a first finished surface of the three dimensional object. A block of expanded polypropylene foam is shaped based on the electronic data. At least one surface of the expanded polypropylene foam block is offset from the first finished surface of the three dimensional object. A layer of hardenable paste is applied to the offset surface of the block of expanded polypropylene foam. The paste is hardened. The paste is machined to form the first finished surface of the three dimensional object.