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Global offset compensation for a CNC machine
Global offset compensation for a CNC machine
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机译:数控机床的全局补偿
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摘要
A method for offsetting a part on a CNC machine comprises clamping a part to a fixture on a table for the CNC machine and machining a plurality of features and surfaces on the part. A plurality of global offsets are calculated for the fixture and the table based on location data of the plurality of features and surfaces. An actual part position on a global coordinate system for the CNC machine is determined by translating the fixture and the table by each the plurality of global offsets to the coordinate system. The actual part position is compensated to a nominal part position for each of the controllable axes of the CNC machine and a controller is programmed with a global offset compensation based upon the calculated offset for each controllable axis of the CNC machine to adjust each of the controllable axes to the actual part position.
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