Jan.vanderlinden wrote:When you say 2D, do you mean to stack the vectors?
Yes. That's 2,5D, ie you can break it down into successive 2D operations as the opposite of reliefs that require continuous Z variations.
General rule: if it's not 3D, don't use 3D toolpath.
You can get a nice cut if you have a CAM which provides toolpath for cutting high slope walls, but it will never be as efficient as 2D cuts.