Share Email Facebook Twitter LinkedIn To Create Concentric Circular Construction Lines (AutoCAD Mechanical Toolset) Click Home tabConstruction panelCircleConcentric Circle. Find Select an arc or a circle. Specify a diameter value for the concentric circle. To draw more than one circle, type | (a pipe) between the diameter values. Related Concepts About Construction Lines (AutoCAD Mechanical Toolset) Related Tasks To Create a Construction Line Perpendicular to Two Points (AutoCAD Mechanical Toolset)To Create a Construction Line at a Preset Distance From a Selected Line (AutoCAD Mechanical Toolset)To Create a Circular Construction Line Tangential to Two Lines (AutoCAD Mechanical Toolset)To Create a Circular Construction Line Tangent to a Line (AutoCAD Mechanical Toolset)To Create a Construction Line at an Angle Relative to Another Line (AutoCAD Mechanical Toolset)To Create a Construction Line Perpendicular to a Line (AutoCAD Mechanical Toolset)To Create a Construction Line Tangential to Two Circles (AutoCAD Mechanical Toolset)To Create a Construction Line That Bisects an Angle (AutoCAD Mechanical Toolset)To Create a Construction Line (AutoCAD Mechanical Toolset)To Create Construction Lines Automatically (AutoCAD Mechanical Toolset)To Create the End View of a Shaft (AutoCAD Mechanical Toolset)To Create Two Parallel Construction Lines Tangential to a Circle (AutoCAD Mechanical Toolset)To Erase Construction Lines (AutoCAD Mechanical Toolset) Related Reference Commands for Working With Construction Lines (AutoCAD Mechanical Toolset)