To Create a Feature Control Frame and Align to a Linear Dimension (AutoCAD Mechanical Toolset)

1. Click Annotate tab Symbols panel Feature Control Frame. Find
2. Click the extension line of the dimension you want to attach to.
3. Move the cross hairs towards the dimension line until the leader snaps to align with the dimension line, and then click.
4. Click at the position you want to place the symbol and then press ENTER.
5. In the Feature Control Frame dialog box, enter the data.
6. Click OK.