Jywe W.Lin C.-C.Shyu L.-H.Lin B.-J.Wen-Yuh Jywe2022-05-242022-05-242002https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036544326&partnerID=40&md5=e558a306a1645bb45195818874f205bdhttps://scholars.lib.ntu.edu.tw/handle/123456789/612015Various testing devices for specified contouring testing purposes on a CNC machine tool were developed in this paper. For checking the dynamic performance of a CNC machine tool, a small-radius contouring device was employed. This device was composed of a laser diode and a quadrant sensor. For checking geometry error of a CNC machine tool, a long-radius contouring device was employed. An optical scale contouring system with designed linkage was developed Furthermore, the application of this optical scale linkage to test the volumetric error of a CNC machine tool was represented. Also, a 2D optical encoder contouring system was introduced to test the performance of a CNC machine tool under various NC paths. Finally, for checking the contouring performance of a CNC machine tool under actual cutting conditions, a non-contact in-processing measurement device was described. Experimental work was carried out and represented in the paper.Least squares approximationsMachine toolsOptical sensorsQuality controlSemiconductor lasersQuadrant sensor contouring system (QSCS)Contour measurementjournal article2-s2.0-0036544326