Nowadays, all views of life require the automation and repetition of jobs. The robot arm is used to achieve this and is
used in many applications (spot welding, spray painting, assembly, ...etc.). In this paper, we show how to design a CAD
model for a robot arm, Simulink model, control the model by Simulink, manufacture the arm, and control it using Arduino. It includes how to perform the forward kinematics to get the endeffector positing from the given angles, the DH parameter and invers kinematics to get the angle that each joint needs to reach to a certain position, using them to obtain the final effector position, and how to move to the desired position of the part. This operation can be done using mat lab. This robot arm can be used to do parts classification[2]. This can increase accuracy, security and save more money.