Sheetmetal > Designing in Sheetmetal Design > Bending, Unbending, Bending Back Walls > Bending Walls > Bend Notes > About Annotation Plane for Bend Notes
  
About Annotation Plane for Bend Notes
Each bend note has a default annotation plane that is always relative to the driving surface of the part.
You can change the default annotation plane of a bend note by using the ANNOTATION PLANE dialog box. When you change the annotation plane, the bend direction is synchronized with the annotation plane.
The bend direction of each bend note is determined by the geometry and the annotation plane. When you place the bend note and the annotation plane is parallel to the sheet metal walls in flat state, the bend direction is updated, and the directions are flipped if the offset surface is closer to you. A flat state is a completely unbent copy of a part. In the Drawing mode, the bend direction of the note is updated based on the view, that is, the surface that is closest to you.
The following figure is an example of a base model with a driving surface and an offset surface. The driving surface indicated in green is closer to you as compared to the offset surface.
1. Driving surface
2. Offset surface
The following figure is an example of a base model with the viewing direction in the downward direction. The driving surface is indicated in green.
1. Bend note with bend direction in the upward direction
2. Driving surface
3. Annotation plane
4. Viewing direction
The following figure is an example of a base model with the offset surface in the upward direction and the viewing direction in the downward direction. The driving surface is indicated in green.
1. Offset surface
2. Driving surface
3. Bend note with bend direction in the downward direction
4. Annotation plane
5. Viewing direction