Whenn perimeter cut, got the inverse result!?

When I try perimeter cut, I got the inverse result. I mean the brep is cutted but the output is the outer part of the bowl and not the inner part. Could you help me please ? Should I change something to the python script or is it possible to fix it without changing it ? Thank you very much for your help !
Issue screenshot is in attachment!
bowlBuilderTemplate.gh (41.2 KB)

Is this what you want?

Maybe someone who knows Python can show you how to do this inside the Assemble section.

1 Like

Thank you very much!