Defining Mate References To define a mate reference: In a part or an assembly, click Mate Reference (Reference Geometry toolbar) or Insert > Reference Geometry > Mate Reference. The Mate Reference PropertyManager appears. Under Reference Name, enter a name for the mate reference. Under Primary Reference Entity: Select a face, edge, vertex, or plane for the Primary reference entity . The entity is used for potential mates when dragging a component into an assembly. Select a Mate Reference Type and a Mate Reference Alignment to define the default mate for the reference entity. Repeat Step 3 to add secondary and tertiary entities. Click . In the FeatureManager design tree, the mate reference is added in the MateReferences folder, and in a Mate in assembly folder under the subassembly or component. Parent topicMate References Capturing Mate References from Existing Mates Example: Mate Reference with Multiple Mated Entities