Creating Intersection Split Lines To create an intersection split line: Click Split Line (Curves toolbar) or Insert > Curve > Split Line. In the PropertyManager, under Type of Split, select Intersection. Under Selections: Select splitting tools (intersecting solids, surfaces, faces, planes, or surface splines) for Splitting Bodies/Faces/Planes . Click in Faces/Bodies to Split , and select the target faces or bodies on which to project the splitting tool. Select Surface Split Options: Split all + Natural Split lines extend tangent from the split line tool endpoints to the surrounding edges. Natural Split lines extend tangent from the split line tool endpoints. Linear Split lines extend from the split line tool endpoints to the nearest edge. Split all + Linear (not shown). Split lines extend from the split line tool endpoints to the surrounding edges. Click . Parent topicSplit Lines Split Line Creation Creating Projection Split Lines Creating Silhouette Split Lines