Thanks for the help to all, I think I'm going to have start my jobs in the lower left hand corner. Daniel S. is there any way you could email me a picture of how you have yours setup for the lower left corner, and tell me how you use it? My Email is email@example.com
You can start in any corner you want but a lot of people use the lower left for the simple reason that all the values in the g code will be positive. When you start the software just look at the little diagram and select a corner you want to use. Simple as that.
I use the upper right corner a lot because I use a vise on my machine most of the time. Upper because that is the fixed jaw on the vise and right because the material stop is on the right side. Pretty handy being able to do that. I can put job after job, all different sizes in there and it will cut perfect everytime.