Your version is making weird results because your base plane isn't positioned as a centerline going down the middle of the object.

You would need to position it like this instead:



It's a bit easier if you can use curve to curve flow when possible.

- Michael

Flow works. You showed me how. Thank you, Michael!!!

I wasn't able to create a new FitFilleting. Not even with blending.
Specifically: there should be a curve where the backrest touches the seat.
I can only achieve this on one side, but not all the way around.
What is the workflow?
Mala

Fillets.....

That's an approach that hadn't occurred to me. Thank you very much for your video tutorial and your remarkable, time-consuming commitment—wow.
Despite the video, I can't understand one operation at the beginning. Where you delete the inverted connection curves and the cushion then closes with the edges.
I have the feeling that deleting the curves happens at the same time as closing the front and back surfaces.
But how?

Inspired by your workflow, I have now also found a solution. It's not as good as yours, but it's a start.
I only left the front and back. And then I created the connections using cross-fading.
Nevertheless, I would appreciate an explanation of the step that I didn't notice in the video.

“””””” Where you delete the inverted connection curves and the cushion then closes with the edges”””””

That is a new feature of v5 where you can delete model features like fillets and recover the underlying object.

So i selected all the current fillets (selected the larger surfaces then inverted selection:Michael)

Then “right click” on the delete button

This is in the beta release notes but is not documented yet, i believe….

See the explanation here:

New RemoveAndFill command - use Shift+Delete keyboard shortcut or Shift+click or right click on Delete button to invoke ACIS Remove component that deletes faces and then heals the resulting openings by extending and intersecting surrounding faces:

“”””” I only left the front and back. And then I created the connections using cross-fading.””””

That looks great!