Hi, I've been trying to cut an elliptical ring between two angled surfaces, using either a lofted/surface cut or a swept cut, and neither seem possible. I'd love to hear other ideas. If you take a look at the attached picture, I'm trying to taper the tip of this needle from the ledge to the tip. The sketch shows the part I'm trying to cut away consistently along the elliptical surface of the needle. The lofted cut would need to be a ring between the surfaces (which is apparently impossible) and a swept cut won't follow my elliptical path. Thank you for any help!