Example Concept: Actuator selection for a robotic arm must balance torque, speed, precision, and efficiency. Key considerations include the type of actuator (e.g., servo, stepper, or DC motor), the required torque and speed for each joint, the precision needed for tasks, and the arm's overall weight capacity. Environmental factors, such as temperature and humidity, also influence actuator choice, as do power supply constraints and integration with control systems like ROS.