I built a cnc controller for steppers and I converted an Optimum BF-20 mill to CNC with this stepper controller and Art’s Mach2. Some picture can be seen at
http://gunol.otocamlibel.com/cnc
Nowadays I am interested on closed loop servo control. In fact I have no idea about this however 4 months ago I was at same condition about steppers
Today I bought a DC servo motor with encoder from a local scrap seller. It has only one label written DIGITAL B54715 however google search doesn’t give any result about this motor.
It has two cables at motor side (one white one red) and four cables at encoder side (white, red, black, blue)
I uncovered encoder side of motor; it is not en optic encoder.
I posted detailed pictures of this motor and encoder at
http://gunol.otocamlibel.com/cnc/servo you can enlarge each picture by clicking.
If any of you have any idea about this motor, please share with us.