I like someone, who has run Mach 3 for a long time, to answer this for me, " Will, and or, does, being connected to the internet, by cable provider, Comcast, modem, affect the function and performance of Mach 3 when running a machine". Do I really need, to have a separate computer, to operate a gantry router/3d printer? Or can I just use the one I'm on right now? Thank you for all considerations.