Patent ID: 7142999

Claim:
A method for correcting guiding errors in a coordinate measuring machine having a moveable measuring head, having a guiding mechanism for guiding the measuring head in at least a first and a second spatial direction, the first and second spatial directions being different from one another, and having scales for determining a position of the measuring head, the guiding errors resulting from at least one of geometric and elastic characteristics of the guiding mechanism and characteristics of the scales, the method comprising defining at least one first and one second measuring line, wherein the first measuring line is assigned to the first spatial direction and the second measuring line is assigned to the second spatial direction, the first and second measuring lines intersecting thereby defining a first point of intersection, and determining correction values along the first and second measuring lines at predetermined values of the scales, wherein the correction values determined along the at least one first measuring line are modified such that a modified correction value of the first measuring line at the first point of intersection assumes a first predetermined value, and wherein the correction values determined and stored along the at least one first measuring line represent relative correction values with respect to the first predetermined value.