The baseline dimension function in Autocad 2D is a useful feature when you want to measure distances from a common level. We show you how in our Autocad 2D training courses.
As an example of how this works first open an existing drawing. The feature is most often used in front and side elevations to show RLs or height from a common elevation like sea level or ground level.
First we need to make the dimensions layer the current one – this can be done either in the Layers Properties Manager or in the layers drop-down list. Then we need to check that the dimension scale works for this drawing. To do this go to the Linear dimension tool either in the Home tab or in the Annotations tab. Then click on two end points of a line; and the third click is to set the distance from the line itself – this can also be punched into the Command Line, for example 2 meters.
Usually the dimension cannot be seen – this is due to the default dimension scale factor 1, which is fine for small drawings of machine parts, etc. But not so good for elevations of buildings. Therefore, type dimscale into the Command line, followed by something closer to the overall drawing scale, 50 or 100 for example.
To create the Baseline dimension we now need to create an initial Linear dimension – this is the first measurement in the series. Once the Linear dimension has been placed, we can then choose the Baseline dimension tool and continue up the elevation, clicking on the major points in the series. Baseline simply adds measurements to the original Linear dimension.
A variation of this is the Continue dimension feature stacked adjacently in the same drop-down list.
More information on all features of the program can be found at the AutoDesk website. And see many examples of our clients’ work on our Facebook page.
Other related Autocad 2d Blog Posts:

• Autocad 2d basics
• Autocad 2d introduction
• Autocad 2d drawing
• Autocad 2d workspace
• Autocad 2d isometric