Our Makino S56 can mill around a radius (or circle mill) without leaving quadrant marks, however our Doosans leave essentially 4 marks when circle milling an ID. If we Finish mill around the outside of a part and it has an arc (at the top of that arc there will be a line almost like it comes off the piece for a split second) Is this a parameter we can adjust , I have seen a few things on static friction compensation parameter but am not 100% positive if this is parameter issue vs machine just not being as good as the makino lol.