What contributes to the accuracy of CNC machine tools?

What contributes to the accuracy of CNC machine tools?
The accuracy of CNC machine tools depends on several factors, some of which are determined by the manufacturer of CNC machine tools, while others can be controlled by machinists.
In order to achieve accurate part processing, the following factors must be considered:
Machine quality: Well-manufactured machines with high-quality components usually produce more accurate parts than low-quality machines.
Machine condition: CNC machine tools contain numerous components, so proper maintenance is essential to maintain its accuracy.
Tool condition: The passivated and worn tools show signs of wear of the flank and crater. It will reduce the accuracy of CNC machine tools, so it is very important to keep them in good condition. Blunt tool will also increase cutting temperature, which is another factor to reduce accuracy.
On-board inspection: feedback tools such as on-board probe can tell the machinist whether the machine is cutting accurately during operation. These tools can also be used to correct any deviation in real time to improve accuracy.
Temperature and humidity: the working environment will affect the processing accuracy. Although the machine can cut parts in warm conditions, thermal consistency must be maintained to avoid deviation.
Calibration: The machine tool should be calibrated regularly to maintain accuracy.