CNC routers are machines used to cut many types of materials, such as wood, plastic, aluminium, and high-density foam. Computer software and electronics are used to manage machines through CNC, or computer numerical control, rather of a direct human operator.
In most cases, CNC machines can cut along three directions known as the X, Y, and Z axes. The X-axis is the front to back direction, which is usually the longest. The Y-axis is the left and right direction, and the Z-axis is the up and down direction. Because they run on computers, CNC routers are faster and more precise than humans, making them useful in manufacturing.