1. Preview ¹öÆ°À» È®ÀÎÈÄ, OK ¹öÆ°À» Ŭ¸¯ÇÑ´Ù.
2. Mouse Curve¿¡¼ Z Axis ¹æÇâÀ¸·Î 3deg ±â¿ï¾îÁø Surface°¡ »ý¼ºµÈ´Ù.