Justin, yes Soigeneris.com is my website. The SmoothStepper is an external motion controller designed for Mach. It connects to your computer through a USB port and provides two ports that are wired like parallel ports. Basically, the SmoothStepper plug-in continuously talks to Mach and gets a list of the next moves that should be made and reports the state of the inputs. Since the SmoothStepper does all the time critical step pulse generation in dedicated hardware the result is much faster and smoother step pulses than are possible through the parallel port. To use one you need the SmoothStepper board of course, a LPH26 to DB25 cable (plugs-into the SS and gives you a 'parallel port' type connector, and a USB cables (shorter cables are always better.) I am out of them at the moment but will hopefully get some in the end of next week.