Author(s)

K. Lau, Q. Ma, X. Chu, Y. Liu, S. Olson

Abstract

It is well understood that if one wants to measure all geometric error components (i.e. linear, straightness, pitch, yaw, roll and squareness) of a 3 axes CNC machine tool using a conventional laser interferometer system [1,2], it may take somewhere between 2 to 3 days to complete. To measure each error component, the laser is required to setup and align with the appropriate optics, and each measurement has to be done independently. The entire process requires some 20+ measurement runs and some of the runs may have to be repeated since the environmental conditions may have changed since the first run. This process is so tedious and time-consuming that very often, component measurements are limited to linear only. Other parameters like straightness, squareness, and angle

Keywords