Creating Dimensions You can use the Create Dimension option to create a dimension on the drawing for geometry that doesn't already have a dimension. This type of created dimension is often referred to as a Driven dimension, since it is driven by the geometry and will update to changes, but cannot be modified directly.

1. Click Create Dimension from the drawing toolbar (top of the screen).
   • Select the edges shown in the following figure.

Selecting Edges

2. Middle-click above the 33 dimension to place the dimension.
   • Click Tangent > Tangent > Horizontal > Return from the menu manager (right of the screen).

Driven Dimension Created

3. Select the FRONT view, right-click and select Cleanup Dimensions.
   • Click Apply > Close. Notice the created dimension is spaced accordingly.
4. Click Refit from the main toolbar.
5. Click Save and then click OK.
6. Click File > Close Window .

This completes the fourth exercise.