What kind of factors will affect CNC machined accuracy?

CNC Machining is currently one of the main ways for prototype manufacturers to produce prototypes, because of its fast speed and high accuracy, it is favored by customers. So, how do we maintain the accuracy of cnc machining?

The accuracy of a CNC machine is measured by the tolerances it can achieve when cutting a part. There are many factors that can effect the tolerance including the type of material being cut, machine itself,  manual tool setting,the type of tool being used, tool wear,the feedrate, the rigidity of the clamping system holding the part down and the rigidity of each axis on the CNC etc .

New machines generally have higher machining accuracy than old machines, and old machines will wear out due to year-round processing, resulting in reduced machining accuracy. And the machining accuracy of 5-axis cnc is higher than that of 3-axis or 4-axis cnc, and the price and cost are also higher.