• First, test the new gear and make sure the servo can achieve smooth and full 360-degree rotation.

• Then, reconnect all three servos and ensure each one is functioning properly without any issues.

• After that, integrate the robotic arm (built using LEGO) with the servo system and test the movement of the gripper and lift mechanism.

• Once the mechanical part is stable, test the control again using WASD and servo controls to ensure smooth coordination between movement and arm operation.

• Finally, make adjustments to the gear ratio or servo angles if the movement is still not stable or not accurate.

• First, connect all three servos to the Arduino and test whether they work using WASD and IJKL controls.

• Once you have tested them and confirmed they are working, you can start the mechanical part by connecting all the motors to the robot.

• After that is completed, build the pickup mechanism and attach the servos to the gripper, lift, and rotate mechanism.

This is the wiring diagram for you to connect the servos

make sure to bring the pickup mechanism this sunday. it must include the gripper and other related pickup mechanism components. As an example, the gripper, lifting mechanism and rotates mechanism

Reference :