Robot arm project from https://howtomechatronics.com.
I have modified the printed elements quite a bit to improve the mechanical properties of the arm. Brass inserts are used in all threaded connections, which guarantees the reliability of the connection and the possibility of multiple disassembly without fear of re-fitting the elements or breaking the threads in the polymer.
The project was completed in its entirety, including the assembly of servos, extending the cables, and connecting to Arduino.
The arm will be used for teaching purposes in the Mechatronics and Robotics laboratory at the Maritime University in Gdynia!

Material: PETG-CF + ABS