Robot arm Educational and made of acrylic glass. Part 2 : the making of. 

This project, which took me many hours of joy and effort, is a logical continuation of my previous
one ( CNC LCF-1 C++ Circle ).
The stepper motors (Nema 23), CPU (Arduino Nano BLE), and even the program (X,Y,Z) could be reused.
The project is a DIY concept but with high accuracy.
Further elaboration (actuators) is left to the creativity of the maker.
Note: only use cast acrylic glass
Hopefully, this project serves as an inspiration for the technically inclined students (STEM).
Thank you! Enjoy!