State-of-the-art calibration techniques generally reduce the positional error in robotic applications.
A real example of the achieved accuracy after calibration of a 159Kg payload industrial robot manipulator holding full load is: pose accuracy before calibration 3,25mm and 5,43mrad, after complete calibration, 0,29mm and 0,35mrad [9].
In Robotic Machining other source of errors have to be considered, as shown in Fig.1.