Means are provided for varying the spindlespeed and (on some machines) for automatically feeding the drill into the workpiece.
另有各种装备可改变转轴速度及使钻头自动钻入工作件中。
2
This function can make numerical control system according to the point in the X coordinates, as the diameter of the workpiece calculated value spindlespeed, and the cutting speed to be constant.