let's say I have this solid:
and want to make this:
At the moment, I manage do this by splitting the solid with a plane, join them with BooleanUnion and finally scale down the section with the gumball.
But, I would like to know if there is a better, easier way to do it ? The "Section" and "SplitFace" almost do what I want, but the Section doesn't create a controllable "edge" , juste a curve; and SplitFace does what I want but only on one face.
I'm still pretty new to rhino and I may be overlooking something pretty obvious.
Thank you for taking the time to read this post.