A method for determining the accuracy of the processing machine

The invention provides a method for determining the accuracy of processing machines, in which the attachment of test marks 122 on a test object 120 and the detection of the spatial position of the test patches 122 is performed relative to the processing machine at the same location. According to the invention each test mark 122 is mounted as close as possible to a predetermined position, the so-called. Target relative position 122a, whose spatial position is accurately known relative to a reference mark 112th The accuracy of detection is the fact that the relative position of the mounted test mark is detected 122 to a corresponding reference mark 112, and thus the relative position is determined actual 122b of the test mark 122nd The deviation between the target relative position 122a and the relative actual position 122b is a measure of the accuracy of the processing machine. The measurement between the reference position 122a and 122b of the actual position is performed by an image capturing device having a disposed on the processing machine camera. So that the accuracy of detection can be performed directly by the machine.