New Methodology for Calibration of CNC Machines

Modern production technology comprises automatic devices with numerically controlled driving axes in a large extent. Those devices - so called CNCs - are financially available not only to large factories but to small and medium enterprises as well. When selecting the CNC machine to be purchased, ratio between the financial aspects and the machine performance is evaluated very thoroughly. This brings a constant pressure on CNC machines producers who seek for modern approaches enhancing performance of their products. The following paper introduces some theoretical aspects dealing with the positioning accuracy of numerically controlled axes.