Share Email Facebook Twitter LinkedIn To Join Dimensions (AutoCAD Mechanical Toolset) Click Annotate tabDimension panel drop-downJoin. Find Select the base dimension (1). Select the dimensions to join to the base dimension (2). Press ENTER. Related Concepts About Power Dimensions (AutoCAD Mechanical Toolset)About Arranging Dimensions (AutoCAD Mechanical Toolset) Related Tasks To Base Dimension Placement on a Contour (AutoCAD Mechanical Toolset)To Align Dimensions (AutoCAD Mechanical Toolset)To Split Dimensions (AutoCAD Mechanical Toolset)To Break Dimension Lines (AutoCAD Mechanical Toolset) Related Reference Commands for Modifying Power Dimensions (AutoCAD Mechanical Toolset)