Hi there, I'm new to all of this but I just got a Zen Toolworks 12"x12" CNC machine. In Mach3 I've set up all the ports and pins, set soft and hard limits and calibrated the machine. All is running well however when I import my G-code my design, instead of being 80MM x 80MM or so, it's huge, its probably 2.5 x 2.5 feet. I am using artCAM to build the code and have a Post processor for millimetres. Any ideas as to whats going on?