Part Modeling > Edit Features > Mirror > Example: Mirroring the Model
  
Example: Mirroring the Model
Original part
1. Mirror plane
Original part mirrored once
1. Mirror plane
2. Cut added after mirror
Original part mirrored twice
 
* Mirroring coordinate systems follows the right hand rule. The x- and y-axes of the coordinate system are mirrored appropriately, then the z-axis is determined.