Drawing - Diameter Dimension

1. Click .
2. Select the arc, circle, or centermark.
3. Move the cursor and click to place the dimension. A diameter symbol is included in the placement.

Placing a diameter dimension on a detail view or crop view of an arc or circle displays a foreshortened diameter dimension, as shown below.

To convert the foreshortened diameter dimension format to a direct dimension, right-click on the diameter and select Display as direct diameter (below left). This replaces the foreshortened dimension with a direct dimension (below right). This option is a toggle, so you can switch between the dimension styles at any time.

To flip the foreshortened diameter dimension to the opposite side of the extension line, hover your cursor over the grip point. When you see the flip arrow attached to the cursor, left-click the mouse. Left-click again to flip it back to the original side of the extension line:

To create a foreshortened diameter dimension for a non-cylindrical feature, select a centerline and the corner, point, or axis of choice. Selecting the foreshortened dimension highlights the reference point or edge and centerline.

You can also add a Diameter dimension to circles that are on either side of other geometry. For instance, the top and bottom circles below have two ellipses between them. The four sketches are lofted, and then a top view is placed in a Drawing. Diameter dimensions are then added to both circles. If the circle is obscured, as is the case in the bottom circle in this example, a guide line is overlaid on top, as you add the dimension, ensuring the visibility of the circle.