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General Mach Discussion / Re: Absolute Machine Coordinates Shifting??
« on: March 10, 2015, 06:33:30 PM »
The parallel port is the native controller for Mach, it uses the computer to do the pulsing for the Step signals. There are lots of external controllers that work with Mach, they do the pulsing in hardware which makes much cleaner pulses and are usually capable of a much higher pulse rate than the parallel port. There are also other external controllers that can output +/- 10v command instead of Step/Dir, these are used to interface Mach with servo drives/amplifiers that tend to be used in industrial CNC machines.
Hood
Hood