PURPOSE: To prolong effective time of robot and to shorten the time of a process by changing relative position of a work to the robot and performing painting work of whole surface of the work to be painted with one robot per one stage.
CONSTITUTION: After positioning a work 6 comprising large sized parts of automobile relative to the position of a robot 1, the robot 1 is operated and a part of the surface to be painted of the work is painted. Thereafter, the relative position of the work 6 to the robot 1 is changed, and other part to be painted of the work 6 is painted. By this method, painting is performed more economically since painting is performed until completion of painting with one robot by setting a work once on a stage.
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