Untitled research work

This paper describes the measurement methods of the guideway errors and the relation between the guideway errors and the accuracy of coordinate measurement of 3-D measuring machine. The main items obtained in this paper are as follows: (1) The error of the probe position is expressed in terms of the guideway errors. (2) Coordinate measurement error can be large even if there are relatively small errors in the guideway accuracy. (3) The measurement method of rolling error of X and Y axis is made by using an autocollimator and mirrors. (4) The rolling error has a most serious influence for accuracy of coordinate measurement by 3-D measuring machine.