Splitting Components


This task shows you how to split the cavity plate and the core plate with a surface.
  • When splitting a component, all bodies included in the component will be split. If there is a body that you do not want to split, rename it with two underscores as a prefix (i.e. body1 becomes __body1).
  • When the number of instances of the component is greater than 1, a dialog box informs you that the component cannot be split.
  • If you wish to have only one instance per reference, deactivate the Several Instances per Reference option in Tools > Options > Mold Tooling Design > Component.
  • When ejectors, ejector pins, ejector flats, ejector sleeves and core pins go through a component that is split, their guided hole length will be maintained even though their overall length is shortened. Guided hole length is defined by the Offset Parting parameter.



  1. Open Split.CATProduct in the samples/Split directory.

  2. Right-click CavityPlate in the specifications tree and select Split Component in the contextual menu.

    The Split Definition dialog box is displayed with CavitySurface as the proposed splitting surface.

    Click OK.

  3. Right-click CorePlate in the specifications tree and select Split component in the contextual menu.

    The Split Definition dialog is displayed with No selection (because no Core surface was found in the MoldedPart). 

  4. Expand the specifications tree and select CoreSide in the MoldedPart. Click OK.

    Here is the result:

The part of the component that is kept after the split operation depends on the mold and the component.

Select the Display direction option in the Split Definition dialog box to display arrows indicating which side of the component is to be kept.