Little bit of history about this project:
This project started about five years ago and was simple low cost CNC project
at the beginning. Only handwheel' s were replaced with stepper motors at the
beginning and I made wooden bench for the machine. We were looking for a
machine with 500 mm X- travel, but Opti BF20L, Grizzly G0519 or similar low cost machines were not available then and we could not afford Wabeco F1210 E.
When you learn more about CNC machining and want to drive faster and faster, you have to start tuning your machine! First part to replace was standard 600W DC spindle motor since I run out of spindle power all the time. I burned couple control board fuses and finally when the spindle speed control board itself burned instead of fuses, change had to be done. Standard spindle motor was replaced with 0,75 kW three-phase induction motor and variable-frequency drive (VFD).