The speed of the white steel knife should not be too fast.

Copper workers use less white steel knives for rough cutting and more flying knives or alloy knives.

When the workpiece is too high, it should be cut thicker with different lengths of knives in layers.

After rough cutting with a large knife, use a small knife to remove the remaining material and ensure that the remaining amount is consistent before cutting.

Flat bottomed cutting is used for flat application, with less use of ball cutters to reduce processing time.

When copper workers clean corners, first check the size of the R on the corner, and then determine what size of ball knife to use.

The four corners of the school surface should be level.

Where the slope is an integer, use a slope knife for processing, such as pipe positioning.

Before doing each process, think carefully about the remaining allowance after the previous process to prevent excessive machining with empty knives.

Try to take simple knife paths, such as shape, groove digging, single-sided, and avoid going around high.

When walking WCUT, if you can walk FINISH, don‘t walk ROUGN.

When cutting the shape, first roughen and then polish, and when lifting the workpiece, first polish the edges and then polish the bottom.

Reasonably set tolerances to balance machining accuracy and computer calculation time. When rough cutting, the tolerance is set to 1/5 of the allowance, and when smooth cutting, the tolerance is set to 0.01.

14. Do more processes to reduce idle time. Think more and reduce the chances of making mistakes. Add more auxiliary lines and surfaces to improve the machining condition.

15. When milling non flat surfaces, use ball cutters more and end cutters less, and do not be afraid of cutting.

16. Clean the corners with a small knife and refine with a large knife.

17. Don‘t be afraid of patching, patching appropriately can improve processing speed and beautify the processing effect.

18. High hardness of raw materials: Reverse milling is better.

19. Low hardness of raw materials: good for forward milling.

20. The machine tool has good precision, rigidity, and precision machining: it is more suitable for forward milling, and vice versa, it is more suitable for reverse milling.