I have a zenbot 48 x 48 with a g540 controller. As long as I don't have G-Code loaded into mach3 it runs to scale, but as soon as I load in G-Code that I have made from Aspire or artcam the scale is out almost a quarter inch. I have tried to get in touch with Sean at zenbot for a couple months now with no response. I have checked to make sure that all of my programs are set too inch units. I'm at a complete loss. If I load a wizard in mach3 it will actually cut to scale. I have attached the setup file that was sent with my CNC for mach3 and G-Code file from Aspire.