To rotate an object:
         
         
            - Activate Rotation mode. (See Activating Rotation mode.) 
            
- Expand the Rotate menu from the Viewer window Transformation buttons and select a Rotation mode from the Rotate options.  
                  - Select Rotate if you want to “spin” the object. 
- Select Rotate Around if you want the other objects in the selection group rotate to around the manipulation point. 
- If you want to rotate objects incrementally, use the Snap Angle button. See Snap Rotation. 
                     NoteWhen in Rotate transformation mode, the reference menu includes the Layer (Additive) option. 
                         
 
- Select the object’s rotation rings in the Viewer window and drag them or enter precise values in Properties windows.  
            
To snap the rotation of objects at specific increments:
         
         
            - Select Settings > Preferences from the menu bar. 
- In the Preferences window, select the Viewer preferences (A).  
            
- In the 3D Manipulators area, enter the size of increment (in degrees) in the Rotation snap angle field. 
               TipRight-click the Snap Rotation button to view the last five increments set for the Snap Rotation and to open the Preferences
                     window and set a new increment size. 
                   
- Activate the Snap Rotation button in the Viewer toolbar. You can also hold down the M key to activate Snap Rotation mode temporarily.
                
               If no rotation increment is specified, objects rotate in 10-degree increments by default. 
                
- To return to regular (non-incremental) rotation, disable the Snap Rotation button. 
 Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
 Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License