Sorry for such a long delay, I am up to my eyeballs with work... at my work.
Hello Rich, sorry I didn't provide more details on what I was doing. I was importing dxf drawings using an older version of mach3 that has the import feature. The dxf files I import treat circles as circles which is fine but I was wondering if there was a symbol with crossing lines like + or X that would be interpreted as a centroid. I was able to edit the G-code and change G2 to G83, but I ended up changing some circles to drill by accident. If I can use a symbol then importing a dxf would be a little easier.
I am only playing around for the time being. I am saving up for Visual Mill which will make a lot of things possible, but I was experimenting with cutting simple parts and the old mach3 dxf was a great starting point and I have cut several shapes so far using this utility.
Thanks,
Mike