Using a brush, paint was put directly onto the painted surface. Occasionally, undesirable results
occur, such as paint layering or streaks sticking around. Because spray guns produce superior paint results, a
robot that can control the movement of the spray gun to apply paint was created. A painting robot with three axes
of motion is similar to an arm. The x, y, and z axes allow the robot to move left-right, up-down, and back-front.
It has a spray cannon as its end effector. The distance between components and the spray cannon is measured
using an ultrasonic sensor; the test sensor distance readings have a bigger average error when the sensor
monitors near distances, such as between 4 and 8 cm. The average inaccuracy decreases as the test reading
distance is raised from 10 cm to 14 cm. A paint distance of 10 cm, an air pressure of 80 psi, and a spray gun arm
movement speed of 25 rpm can all lead to better painting results. The maximum volume that can be painted is
97,517.5 cm3, with an average x-axis movement of 74.6 cm, y-axis movement of 14.8 cm, and z-axis movement
of 88.2 cm. The arm's rotation is used to calculate the required angular rotation for painting components. The
arm must rotate to the left to paint the component's left side at an angle of 10°, its back side at an angle of 100°,
its right side at an angle of 190°, and only the front side at the necessary angle of 90°.