Nobody? If I do find a way to make this controller work or any other info on this I'll post here so people can learn more about this.
Right now I'm searching through the marlin 360 and grbl libraries in an effort to see which ones might be responsible for converting xyz cartesian movement to r0z polar movement, if I can find the right one I'm hoping I can just copy from marlin 360 to grbl so I don't have to modify anything else in 360 to work with milling instead of printing.