SZGH SZGH-CNC1000MDb Series, User Manual, Page: 25 / 223

-Shenzhen Guanhong Automation Co.,Ltd.- SZGH-CNC1000MDb Series
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(b) Incremental Command : Specify the distance from the previous tool position to the next
tool position.
2.1.6 Cutting Speed-Spindle Speed Function
The speed of the tool with respect to the workpiece when the workpiece is cut is called the
cutting speed.
As for the CNC, the cutting speed can be specified by the spindle speed in min -1 unit.
Fig2.1.9 Cutting Speed
<When a workpiece should be machined with a tool 100mm in diameter at a cutting speed of
80m/min.>
The spindle speed is approximately 250 min -1 ,which is obtained from N=1000v/πD. Hence the
following command is require:
S250;
Command related to the spindle are called the spindle speed function (See chapter 4.4) .