Small Cnc Milling Machine on wiseGEEK:
Milling machinery can be operated manually or digitally using device called a computer numerical control or CNC milling machine. In addition to the traditional X, Y, and Z axes found in a manual machine, a milling CNC machine often contains one or two additional axes.
Try to find a mini milling machine with added accessories that will make the milling process easier. Some machines, for example, feature variable speed systems that allow you to control how fast the cutting bit rotates.