The machine operator requires that you stand for hours before the CNC machine, the injection molding machine, or other similar equipment and attend to the needs of the machine operator. It can be a tool change or a material change. The process is tedious and tedious for the human operator. Not only will cobots free a human operator, but a single cobot can handle more machines, leading to increased productivity. This type of cobot use may require the cobot to have hardware with machine-specific input and output (I / O) interfaces. The I / O hardware indicates to the robot the next cycle or when the material needs to be replenished.