Driving four 2.5A stepper motor simultaneously; With 5-axis expansion ... also has: 1, Driving four 2.5A stepper motor simultaneously,With 5-axis expansion, if you need ... mach3 to control spindle start and stop;4, Semi-flow control ,when the motor stop, current is reduced ... peak) adjustable current, rated output two-phase bipolar stepper motor driver;7, Interface with Standard parallel port , support ...