An Assembled body is created by Subsystem Assembly in a subsystem. In a part file, the geometry of the assembled body can be created in two ways. The first is to create simple geometries such as Cylinder Creation and Properties, Sphere Creation and Properties, Tri-Plate Creation and Properties and Block Creation and Properties in the part. The other is by using Import CAD Geometry in the part. When the assembled body is created, the CM center marker is created simultaneously. The marker shows the position and the orientation of the body reference frame as in Equation 3–1 and Equation 3–6. This marker cannot be modified or deleted separately.