尺寸精度：CNC零件加工的公差和可重复性都很好，非常小到非常大的零件都可以通过CNC零件加工出来。由于CNC设备刀具的形状，导致零件的内角总是有一个半径

When operators commence CNC machining of parts, they must set the feed rate to a very low level and execute one step at a time. They must remain fully focused during rapid positioning, tool retraction and feed-in; their hand should rest on the stop button so that they can halt the machine immediately if any problems arise. They must carefully observe the direction of tool movement to ensure safe feed-in, and then