The Select Undercut Components dialog selects surfaces that are entirely or partially undercut. To display the dialog, from the Models context menu, select Selection Tools > Select Undercut Components.
Undercut shading requires the correct surface orientation of the model.
The Orient surface options enable you to correctly orient your model.
- Orient all — Click to automatically reverse the orientation of all the surfaces which are incorrectly oriented in the current view.
- Orient selected — Click to automatically reverse the orientation of all the selected surfaces which are incorrectly oriented in the current view.
Draft Angle — Enter the draft angle. This is an angle incorporated into a wall of a mold, so the opening of the cavity is wider than the base, which allows for easier ejection of the part. This option selects undercut surfaces less than, or equal to this value.
Match draft angle — When selected, selects undercut surfaces equal to the draft angle (undercut surfaces less than the draft angle are not selected).
Include partially undercut components — When selected, selects any surface which has an undercut region
When deselected, any surface which is wholly undercut is selected.
Selecting Include partially undercut surfaces selects at least as many surfaces as when deselected.