Locking Labeled Dimensions

You can maintain the parametric relationships between labeled dimensions by locking them. To lock a dimension directly in the drawing area, click next to the dimension.

When a labeled dimension is locked, all of the associated parameters also lock. This means that as the dimensions are moved in the drawing area, the associated parameters are constrained and the dimension value is preserved.

When a labeled dimension is unlocked, all of the referenced geometry unlocks and is unconstrained.

To lock a labeled dimension from the Family Types dialog

1. Click a dimension in the drawing area.
2. Click Modify | Dimensions tabProperties panel Family Types.
3. Select Lock to constrain a parameter.