How to Add Dimensions in CAD

Linear Dimension

Dimension points

Draw horizontal or vertical dimensions.

Click the icon Icon: Linear Dimension or select the menu command Draw - Linear Dimension. Follow these steps:

  1. Click to set the first point (start of the first extension line).
  2. Click to set the second point (start of the second extension line).
  3. Click to set the third point (position of the dimension line, horizontal or vertical).

Aligned Dimension

Draw dimensions at any angle.

Click the icon Icon: Aligned Dimension or select the command Draw - Aligned Dimension. Follow the same steps as for linear dimensions.

Difference between linear and aligned dimensions:

Difference between linear and aligned dimensions

Diameter Dimension

Dimension the diameter of a circle. Click the icon Icon: Diameter Dimension or select the menu command Draw - Diameter Dimension. There are three ways to dimension a circle:

  1. First point inside the circle.
  2. First point outside the circle.
  3. First point at the opposite side of the circle.
Diameter Dimension

Dimension Styles

The program includes predefined dimension styles. Each page can use a different style. To configure:

  1. Right-click the drawing.
  2. Select Page Settings from the menu.
  3. Open the Dimension Style tab.

From the dialog box, you can:

  • Choose a predefined style.
  • Create a new style.
  • Modify an existing style.
  • Delete a style.
Select Dimension Style

Click New or Modify to customize dimension style properties. A preview illustrates the parameter effects.

Edit Dimension Style

Dimensioning Units

All dimensions on a page share the same unit, set in the Dimension Style dialog. Units are not displayed on dimensions but can be included in the title block. Use the system variable {_du}.

Custom Text

Enter custom text for dimensions in the Properties panel.

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