To Apply a Dimensional 3D Constraint
Dimensional 3D Constraint tool (
Select a 3D element (solid or surface).
The selected 3D element is highlighted.
Select the face, edge or vertex of the 3D element you want to
constrain (reset if a face (or entity) is behind another face (or entity) until
the desired one is selected).
The selected face, edge or vertex is highlighted.
Select another 3D element and then select the desired face, edge
or vertex of this 3D element.
The distance between the selected entities is displayed.
Do one of the following:
orNote: You can also select variables from the dimension box's drop-down list, provided you have already set variables in the Variables dialog.