1. Parallel ¾ÆÀÌÄÜÀ» ¼±ÅÃÇÑ´Ù. Curve : Sketch.2 Support : Default (Plane) Constant : 3mm
2. Preview ¹öưÀ» È®ÀÎÈÄ, OK ¹öưÀ» Ŭ¸¯ÇÑ´Ù.