Standard Mates Standard mates include angle, coincident, concentric, distance, lock, parallel, perpendicular, and tangent mates. Contents Angle Mate You can add an angle mate between the combinations shown below. Reference Entity for Angle Mates Reference entities help prevent angle mates from flipping unexpectedly when you open the assembly, drag the angle mate dimension, or switch configurations. Creating an Angle Mate with a Reference Entity Example: Auto-Fill for Reference Entity This example shows what to do when Auto-Fill for Reference Entity fails for an angle mate. Coincident Mate You can add coincident mates between the combinations shown below. Concentric Mate You can add concentric mates between the combinations shown below. Distance Mate You can add distance mates between the combinations shown below. Distance Mates to Cylindrical Components When you add a distance mate between two cylindrical faces, four options are available. Lock Mate A Lock mate maintains the position and orientation between two components. The components are fully constrained relative to each other. Parallel and Perpendicular Mates You can add parallel or perpendicular mates between the combinations shown below. Tangent Mate You can add tangent mates between the combinations shown below. Parent topicTypes of Mates Advanced Mates Mechanical Mates