Inverse error analysis for multi-axis machines

This paper discusses the problem of tolerance distribution among the links and joints of a multi-axis machine. By defining the maximum allowable tolerances for the position and orientation of the tool in the machineߣs workspace, the allowable error tolerance limits of the link parameters and of the error motions of the joints are obtained. The solution of this problem, to be referred to as inverse error analysis, is of fundamental importance during the design stages of a new machine.