Part Modeling > Edit Features > Solidify > Solidify (Patch) Feature Conditions
  
Solidify (Patch) Feature Conditions
Because the solidify (patch) feature will often simultaneously add and remove material, additional conditions are required to create the feature. To define a solidify patch feature your quilt selection must satisfy one of the following conditions, otherwise the patch option is not available.
Condition
Example
Open Quilt
All boundaries lie on solid surfaces
Solid geometry does not intersect quilt
Quilt is totally outside solid geometry
Open Quilt
All boundaries lie on solid surfaces
Quilt is totally inside solid geometry
All boundaries lie on solid surfaces
Solid geometry intersects quilt