Robotic arm

Important: Please Read!!! The project requires the following components:1x Medium-sized breadboard1x Mini breadboard1x Arduino (e.g., Uno or Nano)4x SG90 Micro Servo motors + the screws included with the motorsJumper wires / Electrical wiresBattery holder (I used 2x 18650 batteries – 3.7V)Project Overview: 3D-Printed Mini Robotic ArmThis is a compact, articulated robotic arm designed for educational purposes, hobbyist robotics, and learning automation. It combines 3D-printed structural components with standard hobby electronics.Mechanical Design & StructureBody Construction: The majority of the frame is 3D-printed (likely using black PLA or PETG). It features a sturdy box-shaped base for stability, a rotating central pillar, and movable joints.The Base: The arm is mounted on a cylindrical swivel base that allows for lateral movement (Yaw axis).End Effector (The Gripper): The arm terminates in a mechanical gripper with serrated teeth, specifically designed for picking up and manipulatin