A transitional constraint specifies the intended relationship between (typically) a cylindrical part face and a contiguous set of faces on another part, such as a cam in a slot. A transitional constraint maintains contact between the faces as you slide the component along open degrees of freedom.
Ribbon: Assemble tab Relationships panel
Constrain
, and then click the Transitional tab.
Selects geometry on two components to constrain together.
Selects the first component.
Selects the second component. To select different geometry on the first component, click First Selection, and then reselect.
Limits the selectable geometry to a single component. Use when components are close to or partially obscure one another. Clear the check box to restore feature priority selection mode.
Select the check box to preview the constraint to apply.
Name Sets the constraint name. Creates a unique name for the constraint in the browser. You can enter a name or leave blank and a default name is automatically created.