Add an Equal Distance Constraint

Set to the two part pair the equal distance value. Click parts, and from the parts the face which define the constraint, and the line or the point. If the result is not what you expected, you can flip the Distance constraint or change its chirality.

1. On the tab, in the Constraints group, Add egual distance constraint.
2. Select the first (1st) pair of parts as follows:
   • Select the first part and an element in it (A).
   • Select the second part and an element in it (B).
3. Select the second (2nd) pair of parts as follows:
   • Select the third part and an element in it (C).
   • Select the fourth part and an element in it (D).
4. Edit the value of the distance in the dialog box, and select OK.