To Create an Offset of a Free Curve
1. In the Model Tree, select the Style feature that contains the free curve, and then right-click and choose Edit Definition. The Style tab opens.
2. Click Style > Curve > Offset Curve. The Offset Curve tab opens.
3. Click the collector, and select one or more free curves to offset.
4. To set the direction to offset the curve, click the collector, and then select a plane.
5. To set the distance to offset the curve, type a value in the Offset box, or drag the handle on the curve.
Typing a negative value in the Offset box reverses the direction of the offset.
6. To export the offset value for modification outside of Style, select the Offset check box.
7. To offset the curve perpendicular to the reference plane, select the Normal check box.
8. Click .