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Example of Creating a Core

In this example, the recessed feature on the front of the plastic part is a trapped molding area that requires a core.

First, you create a sketch on a tooling solid (in this case, the Cavity Body) to define the outline of the core. Then use the Core Tool_Core_Mold_Tools.gif tool to create the core.

To create a core:

  1. Open a sketch on the inside face of the Cavity Body, as shown.
  2. Sketch the outline of the core you want to create.
    mold_sidecore_02a.gif mold_sidecore_02b.gif
    Front view Right view
    The plane on which you create a core sketch does not need to be perpendicular to the extraction direction of the core. In this case, the sketch is on the inside face of the cavity body, which is drafted 5° from the direction the core travels.
    Extraction direction mold_sidecore_04.gif Away from extraction direction
  3. Close the sketch.
  4. With the sketch selected, click Core Tool_Core_Mold_Tools.gif on the Mold Tools toolbar, or click Insert > Molds > Core.
  5. In the PropertyManager, set the options as described below, then click PM_OK.gif.

    A new body is created for the core and is subtracted from the Cavity Body.

    In the FeatureManager design tree, in the Solid Bodies folder FM_solid_bodies.gif, the new core appears in the Core bodies folder FM_solid_bodies.gif.


Bounding sketch for core PM_sketch_to_project.gif Select the core sketch created in step 2.
Extraction direction Select the front face of the cavity body as shown.
Core/Cavity body solid_bodies.png Displays the name of the cavity body.


Draft On/Off Click to add draft, then set Draft Angle to 5.
Draft outward Select to create an outward draft angle.
End Condition Select Blind for the end condition in the extraction direction, then set Depth along extraction direction PM_distance_nonum.gif to 50.
End Condition Select Blind for the end condition away from the extraction direction, then set Depth away from extraction direction PM_distance_nonum.gif to 25.
Cap ends Select to define the end surface of the core.

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