Share Email Facebook Twitter LinkedIn To Base Dimension Placement on a Contour (AutoCAD Mechanical Toolset) Click Annotate tabDimension panel drop-downArrange. Find Select the dimensions to rearrange (1). Press ENTER. Select the contour on which to base these dimensions (2). Press ENTER. Related Concepts About Power Dimensions (AutoCAD Mechanical Toolset)About Arranging Dimensions (AutoCAD Mechanical Toolset) Related Tasks To Align Dimensions (AutoCAD Mechanical Toolset)To Join 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)