Creating a Surface Extension

Working in Auto-Pilot Mode

You can create most surface extensions from minimum G2 and G1 lengths in auto-pilot mode. This mode is proposed by default when you enter Surface Extension.

Select an axis system (Stamping Direction).
Select the surface to extend.
On the selected surface, select:
- Either wires (Boundaries or stable split curves) to extend on this surface.
- Or faces to extend on this surface.
- Or nothing. In this case, all border faces are extended.
Tip: For the best possible support of design change, select wires, especially stable split curves.
Optional: Select an up-to-element to trim the extended surface by this element (No need to compute distances).
Select inner edges to guide the G1 extrapolation.

Note: If you are using a combination of G1 and G2 extrapolations, inner edges are retrieved on the G2 extrapolation.
Enter the Min. G2 Length and Min. G1 Length values.
Surface Extension tries to compute G2 extensions. If impossible, it creates G1 extensions, both from the values entered.

Working with Editable Parameters

You can display more parameters and edit them to compute extensions, if the auto-pilot mode failed to do so.

Select the Customize Extension check box.
Select the required check boxes.
- Work Face by Face
- Work With Untrims
- Check Tangency
- Check Undercuts and Overlaps.
Specify the other values as required.
If extension fails, errors are displayed, with a visualization of the problem to help you solve errors.