Method of manufacturing precision parts with non-precision fixtures

摘要

A method (28) for manufacturing a precision part (18) utilizing a non-precision fixture (10). The non-precision fixture is precisely measured (40) and modeled in a CAD program (42) together with a model of the part (30). The part model is nested (48) into the fixture model, and a transformation matrix describing the movement of a coordinate system of the part during the step of nesting is recorded (50). The transformation matrix may then be used to transform (52) a tool path that had been developed for the originally designed shape of the fixture. Accordingly, imprecision in the location of a part within an imprecisely measured fixture may be accounted for during subsequent manufacturing operations.