Split plane trim – Silhouette Trim
Useful for finding your split line on complex surfaces eg. creating a mould tool;
- Select all solid surfaces: select one surface > RMB menu > Solid Surfaces
- Copy and Paste to create Surf Copy feature
- select the Copy feature – Edit > Trim
- select a plane/planar surf parallel to your split
- choose the Silhouette option in the dashboard
- choose which side to keep
In the model below the silhouette curve was needed to create the split surface for this mould tool to avoid undercuts. The curve was used in as a sweep trajectory (with appropriate section control) to create a horizontal surface around the model.
CADCAM Resources 
