Abstract
A new evaluation method of geometrical accuracy based on the evaluation of the machined workpiece has been developed. The strategy of our evaluation utilizes coordinates measuring machine (CMM) as a master gauge because of its accuracy so that machine operator devotes himself to machining and technologist of precise measurement dedicates in measurement. In our study, the non rotational machining is utilized to copy and trace the machine trajectory to minimize the machining error. Machined workpiece is evaluated by the coordinates measuring machine and extract the geometric error of machining centre. The measured results are enough accurate compared with those by the square master gauge calibrated by CMM previously. In this report, the machining setup and the evaluated results are shown with the experimental procedure.
