Adding Shut-off Surfaces

To cut the tooling block into two pieces, you need two complete surfaces (a core surface and a cavity surface) without any through holes. Shut-off surfaces close up the through holes.

The changes to the geometry required to patch so many areas are very complex. Depending on variables such as your hardware, the number of processes running, and so on, these shut-off surface operations might require a few minutes to complete.
  1. Click Shut-off Surfaces (Mold Tools toolbar).
    In the PropertyManager, all the through holes appear in Edges .
  2. Under Edges, select the following:
    • Knit. Joins each shut-off surface into the cavity and core surfaces.
    • Filter loops. Filters out loops that do not appear to be valid holes.
    • Show callouts.
    In the graphics area, callouts identify each loop with the default surface fill type, Contact.

  3. Click Zoom In/Out (View toolbar) and enlarge the image.
  4. Click .
    The uneven coloring of the model occurs because the cavity surface is coincident with the faces of the solid body.

    Optional Information about Cavity, Core, and Shut-off Surfaces

    When you created the parting line, the software defined two surfaces:

    Surface Duplicates these faces of the model Default color
    cavity top green
    core bottom red

    In the Shut-Off Surfaces PropertyManager, you created surfaces to patch each through hole, which were knitted into the cavity and core surfaces.

    The surfaces are listed in Cavity Surface Bodies and Core Surface Bodies , under Surface Bodies in the FeatureManager design tree.

    Cavity surface
    Part
    Core surface