A CNC (Computer Numerical Control) machine is a powerful tool used in a makerspace to precisely cut, carve, and shape materials like wood, metal, plastic, and foam based on digital designs. It operates by following programmed instructions to move and control tools with high accuracy, enabling the creation of complex and intricate parts or objects. CNC machines are essential for prototyping, custom fabrication, and educational projects, allowing makers to turn digital ideas into physical products with efficiency and precision.