ATHENA 2021 > Configuration > Options > Cutting
  
Cutting
Manages cutting classes in a dialog box.
Components which meet at a junction and are to be cut together must have identical cutting classes. These components are processed during the Cutting according to the type of joint.
Cutting classes can be assigned to both components in bar assemblies and components in assemblies.
You will find a detailed description of the function in the section Cutting class.