A new option for extruding

The Extrude tool offers the new Always add solid option on the Context toolbar. Using this new option, you can specify how the extruded solid behaves when it penetrates the existing solid.

The extruded solid penetrates the existing solid:

• Always add solid is not active (set by default):
  The penetrating solid will be subtracted.

  

• Always add solid is active:
  The penetrating solid will be added.