• When the size of the work exceeds 1 m, angular errors become amplified in three dimensions at a rate of 5 μm/arc-sec/m. • In a typical situation, the global XYZ machine-coordinate system is defined ...
R-test trunnion setup on C-axis machine configuration (above). The master ball is mounted on the table and the probe is mounted in the spindle for measuring alignment and contouring errors in three ...