Use the GcConcentric command to make the center points of Arcs, Circles, Ellipses, or elliptical Arcs to coincide.
To define concentric Geometric Constraints:
When you specify a PolyLine arc as the second entity, only the specified arc segment is made concentric to the first entity; the geometry of the PolyLine changes instead of moving entirely.
Access
Command: GcConcentric
Menu: Constraints > Geometric Constraints > Concentric
Ribbon: Constraints > Geometric > Concentric
Parent Topic