Extension Surface

 

 

Links / Videos :

 

 

This command allows to create a shape by extending a part area, while locally keeping the tangents to the base faces.

 

Creation stages / Use:

 

Click the icon or select the Surface > Extension Surface... command from the drop-down menu.

 

  1. Select edges to define edges path.

  2. Select neighbouring face to define tangent and sections.

  3. Enter length extension.

  4. Select extension mode.

 

Extruded: Edge extrusion according to given direction.

Lofted: Creation of a lofted shape on edges path.

Sections are created automatically from edges path and base face.

Swept: Creation of a swept shape on edges path.

Sections are created automatically from edges path and base face.

Extension: Surface created by edge extension keeping face curvature.

 

  1. Complete options.

 

 

 

This is particularly useful in sheet metal for manual unstamping.

Surface extension example with Lofted mode and lateral extension at the start

 

 

 

Available options:

 

 

  • Exact : Boundary extensions represent an exact measure of the distance from origin boundaries.

  • Approximate : Boundary extensions represent an approximate measure of the distance from origin boundaries. Only the lateral boundaries length is exact.

Exact

Approximate

 

 

  • Following adjacent edge: The extension side edge is created following the adjacent edge and/or its extension.

  • Orthogonal to base edge: The side edge is created orthogonal to the base edge.

Following adjacent edge

Orthogonal to base edge

 

 

This option allows to extend surface boundaries at the start and/or end.

 

 

 

This option allows to create different sections of the surface to create.

A sketch solving operation is created.

 

 

 

This option deletes auto-intersections between surfaces of the shape when this is the case.