Part Modeling > Edit Features > Offset > Offset Boundary Curves > To Create a Variable Offset Surface Boundary Curve
To Create a Variable Offset Surface Boundary Curve
1. Select a one-sided edge, such as the edge of a quilt, and click Model > Offset. The  Offset tab opens. The selected curve appears in the Boundary edge collector on the References tab.
2. Click the Measurements tab.
3. Right-click inside the table, and choose Add from the shortcut menu to add a point or vertex to the selected edge chain. A point appears on the selected edge chain.
4. Drag the point to the desired position. You can also enter a value for the point in the Location cell, if the handle is not located on a vertex.
5. Drag the handles for a point to change the offset distance. You can also enter the offset distance for a point in the Distance cell.
6. Click to complete the offset surface boundary curve.