1. Utilize CNC cutting tools reasonably.

Grain-oriented steel and copper bars must be strictly separated in usage. The stock allowance of the cutting tool should be reasonable to ensure better smoothness of the workpiece and extended tool life.

2. Prior to CNC machining, use a caliper to check if the tool is oscillating within the allowable tolerance range. The cutting head and collet must be blown clean with an air gun or wiped with a cloth before installation. Excessive dirt can affect the precision and quality of the workpiece.

3. During the fixture process, ensure to carefully check that the names and models of the CNC machined parts and the program sheet match, that the material dimensions are compatible, that the fixture height is sufficient, and use calipers to measure.

4. CNC machining program sheets must be standardized, including mold numbers, names, program names, machining contents, tool sizes, feed rates, especially the safe length of tool clamping, the reserved allowance for each program, finish passes, and clear notations. The transition points between the R surface and the flat surface must be noted on the program sheet. Operators should raise the tool by 0.02 to 0.05mm before machining to check if the transition is smooth, and feel with their hands to see if there is any burr. If it's not smooth, lower the tool again.

5. The CNC machining program must align with the mold's indicated reference angle direction. Then, verify if it matches the 3D drawing, especially for parts that have been drilled for water flow. Ensure that the 3D drawing and the water flow on the mounted part are consistent. If there is any uncertainty, promptly report to the programmer or seek the assistance of a fitter to check the 2D drawings, ensuring the 2D and 3D reference angles are consistent.

6. Prior to processing, it is essential to fully understand the content of the CNC machining program. The program must include either 2D or 3D drawings, and it must indicate the "X length, Y width, Z height" six-axis data.

All flat surfaces must be marked with the "Z" value for easy data verification by operators after processing. Tolerance data should be noted for surfaces with tolerances.

7. Operators of machine tool processing must strictly control the cutting speed, ensuring that the F speed and S spindle speed are reasonably adjusted. When the F speed is fast, the S spindle should be accelerated accordingly. Adjustments in feed rate should be made in different areas. After processing, quality checks must be conducted before the machine can be turned off, aiming for one-time success.