The idea was to use materials from previuos failed projects into a succesful one. I have build this tiny but powerfull CNC machine mainly using the universal gantry plates for the X and Y axis. Also another innovative part is the fact that I assembled the Z gantry with 2 aluminum sections of 20X40 and one aluminum seccion of the 20X20. I used NEMA 17 stepper motors with GT2 pulleys. This was designed on Fusion360