Alibre Design

Chapter 12 - Drawings12.4 DimensioningTypically, as you create features in part mode you place driving dimensions that define theassociated sketch profiles. Additionally, dimensions that define a feature's size, such as extrusiondepth, are also considered driving dimensions.When you create a drawing based on the part, you can choose to display the driving dimensionsfrom the part automatically during view creation see "Inserting Standard Views" on page 320 on theapplicable view in a drawing. If you do not choose to display driving dimensions upon creating thedrawing you can always do so later.You can also manually insert additional dimensions on a drawing view. These user-addeddimensions are referred to as Reference dimensions. Reference dimensions are displayed thesame as driving dimensions. However, you can display a reference dimension in parentheses todistinguish it from driving dimensions. Right-click the reference dimension and select Propertiesfrom the pop-up menu. Select the Units and Tolerance tab, select the Display As ReferenceDimension option, and click OK.If a driving dimension is changed in part mode, the associated dimension in the drawing willautomatically get updated. You can also edit driving dimensions in the drawing. If you change adriving dimension in the drawing, the part is automatically updated.Reference dimensions cannot be edited or changed. However, reference dimensions will updateupon the modification of driving dimensions. You can insert additional reference dimensions indrawings to further clarify the design intent.345