1. Measurement error.

After detailed inspection and analysis, if the measurement error is caused by the measurement accuracy and the

irregular operation of the surveyor, the actual engraving size matches the required size, the error can be compensated.

2. Programming error.

If there are programming errors in stone carving machine, most of the reasons are caused by interpolation errors in the NC programming system. The main reason is that the straight line segment or arc segment is too close to the contour of parts. This operation is also one of the important factors affecting the accuracy of the stone carving machine. The main way to correct this error is to increase the number of interpolation nodes, but it will greatly increase the workload.

3. Tool error.

If it is the error of the cutting tool of the stone carving machine, most of the cases are the problem of the arc position of the cutting tool tip. When the stone carving machine cuts the inner hole, the arc of the cutting tool tip of the stone carving machine does not affect the size and shape of the product, but if the arc of the cutting tool tip is dislocated in the process of cone or arc, it will lead to over-cutting or less-cutting. This kind of error can be passed through. The radius of the tool tip arc is adjusted, and the radius compensation function of the engraving tool is used to deal with the error.

4. Tool alignment error.

If there are errors in tool alignment, the main reason is that in the process of tool alignment of stone carving machine, the tool is affected by the proportion of the system in the West and east. The main way to solve the error of tool alignment is to adjust the proportion of feed adjustment by reasonable selection. Especially when the cutter of the stone carving machine is close to the starting point, the cutter of the engraving machine can be precisely positioned at the starting point by adopting the minimum gear feed adjustment.