Our shop just bought a Makino A77 4 axis mill and I was put on the project to get it up and running. It came with a bunch of manuals but I could not find a programming manual. My questions are, how can you tell if you have the GI or SGI option. Also, how do I use it. I see in one manual it says something about G08 P1, but I also see there are M codes, like M250 through like M255 that have something to do with the different GI/SGI modes. Any explainations would be greatly appreciated. Thanks.