To create a critical dimension for optimization

A critical dimension is a specific part dimension in which you are interested. A critical dimension is defined by the distance between two specified locations, and is used to study part shrinkage and warpage. The aim of an optimization is to determine the set of parameters that will minimize the change in the selected critical dimension.

A critical dimension can be added to a CAD model prior to meshing and, on meshing, a node will be created at the end point of the critical dimension. Once the CAD body is meshed, a critical dimension can only be added to the nearest node.

1. Click (Optimization tab > Criteria panel > Critical Dimensions) and select Optimization from the drop-down menu.

2. Click the location on your model and the position is added in the Location 1 box automatically.

3. Repeat the process for the second location.

4. Type a name in the Name box that is unique to this study.

5. Click Apply to create a critical dimension.

   The critical dimension is placed on a separate layer, called Constraints, that contains optimization critical dimensions.

6. To close the Tools tab, click Close.