GERB (Geometry Environment for Robotic Building) is a CAD-CAM system developed by Number One Systems, Inc., a leading provider of CAD-CAM software for industrial automation and robotic systems. The system is used to design and program robotic assemblies such as welding, milling, and painting robots. It allows the user to input the desired size and shape of the part, create a 3D model, and program the robot to assemble and construct the part. GERB also includes features for analyzing and optimizing robot trajectory, calculating robot speed and acceleration, and simulating robot operations. This allows users to create more efficient and cost-effective designs and improve their robots’ performance. In addition, the system can also be used to create custom control systems and manipulate robots using parameters such as force and torque.