It is better to make DIY Arduino Robotic Arm since Industrial robotic arms are very expensive because of complex sensors and high accurate motors, in this project we will make budget friendly robot arm. Features of Arduino Robot Arm Uses micro servo for movementsControlled by potentiometerCan be use to pick and place objects Rotation up to 180 degree is possiblei use less expensive servos for high stability you can use metal geared servos but price of project goes highArm can be lift and releaseNano will be use to control the communication between potentiometer and servoCircuit can be made in breadboard or PCB i made with PCB Supplies required to Make Robot Arm If you want to get all these components check below i have