Review on Digital Stepper Controller 2 Phase Subdivision by Ryan Gilliam

I use it to control the 4th axis on my CNC router and am very happy with its performance. It runs amazingly cool even though I'm driving it at over 3 amps on my NEMA 23 57mm 3A stepper motor, 2-phase, 4-wire. I recommend ++. I am using a 24 volt power supply. Very important.