Creating an Internal Feature

You can adds material only to the inside of the shellable and core feature that it intersects within the same body using the Internal Feature command.

The Shellable Properties are not inherited. Thus the external boundaries of the feature remains the same, and the internal feature is reduced in a shelled volume.

Related Topics
Creating Basic Features
About Basic Features
Using the Display Only Parents Option to Retrieve a Creation Context

  1. Click Internal Feature in the Basic Features toolbar.

    Internal features can have different basic shapes: Prism, Sweep, Revolve, Thick Surface or an External Shape. The Internal Feature dialog box that appears displays the Prism as the default shape to be created.

  2. Select the profile you want to extrude.

    Tip: If no profile is defined, clicking Sketcher enables you to sketch the profile you need.

  3. In the Limits tab, enter 15mm to define First length and 20mm for Second length.



    Important: See Prism (or Sweep) page if you want to make the shape more complex, by setting parameters and options.

  4. Select the Thick check box that is available for the Prism, Sweep and Revolve shapes. This option enables you to add material to both sides of the profile. Once selected, Thin Solid options are displayed:



  5. Enter 7mm in the Inside Thickness field.

    Thickness is added to the inside of the profile.

  6. In the Reference list, select Outside Thickness.

  7. Enter 3mm in the Outside Thickness field and click Preview.

    Thickness is added to the outside of the profile.

  8. In the Reference list, select Neutral Fiber to add material equally to both sides of the profile.

    Important: The Extend across removed facesoption causes a feature not to be confined within the wall of the deleted face of the shelled volume.

  9. Click Preview to see the result.



  10. Click OK to confirm and create the internal feature.

    Internal Prism.X is added to the specification tree in the Solid Functional Set.X node.

    Outside



    Inside