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Base Dimensioning

CAD drafting Base Dimensioning 0    Ribbon: Home, Annotate - Dimensions > CAD software Base Dimensioning 1 Baseline Dimension

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CAD software Base Dimensioning 4    Toolbar: Utilities – CAD drawing Base Dimensioning 5

CAD drafting Base Dimensioning 6 Command line: DBA, DIMBASELINE

Base dimensions are a sequence of dimensions measured from a reference point.

A base dimension creates a linear, angular or ordinate dimension from the baseline of the previous or selected dimension.

To draw the base dimensions:


1.    Start the Auto command.

2.    Select the Base option in the command line or context menu

3.    Select the extension line of the previous dimension as a base:

CAD software Base Dimensioning 7

4.    Specify the endpoint of the first dimension:

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5.    Specify the endpoints for all the other dimensions and press ENTER to finish the command:

CAD drafting Base Dimensioning 9

The default spacing between the baseline dimensions can be set from the Modify dimension Style, Lines tab, Baseline Spacing.

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