Barry, I used your model and cut it. I didn´t make the loft splines. Hmmm´...
Generally I fail doing fully simple things: Adding points in order to get a sharper edge for the crease.
When I use add points the circle changes it´s line. Do I use the trim tool, moving the points no soft edges are generated...
How do I make additional points for smoth and undeformed splines?

Hi Lara,
the first post only contains the curves how did you construct the solid from them loft or sweep ?
Select all the circles and sweep the arc.
How was the last model I posted ?
To add more points use rebuild points option.
I used 64 points.
You can always just add tangent circles to the main circle
and trim to get a sharp point that’s what I did with the blue option.
Cheers
Barry

Rebuild = Press Tab and write rebuild (ReBuild even RebuilD but without Space) before or after select curve(s)
or make a ShortCut as usual

ok - the secrets...of rebuild. I thought until now it is only for reduce a complex structure.
should´ can go on...best, MALA

Thanks for that family...

Hi, I got an construction/modelling modification.
The oval is not horizontal - it is turned for some degrees.
I tried some things but I failed making a crease that is turned in the oval direction.
Main idea was modelling it on the oval plane and then operate with the flow command...hmmm´...

Hi Mala, I'd probably put in a plane as the base surface as described above, keep your target surface like it was before, only enlarged if needed and instead rotate the base objects in relation to the base plane instead of trying to rotate the target piece.

What you're running into is that surface to surface flow works on the "underlying surfaces", and if you show the underlying surface of your target surface that was created by trimming you should see that underneath the trim boundaries it is still the same underlying surface as before. Basically the target surface trimming will not have an effect on flow since it does not work by following trim curves, it works on the underlying surface. So trimming a rotated oval out will not introduce rotation. But rotating the base objects in relation to the base plane will.

- Michael

If i take 2 inclined oval surfaces Start / Target

Thank you Michael for that step. I did not yet try that step because I thought it is the second one. The first step I already failed was the sweep of the surface. I never did it with a sourrounding profile (oval) and that 3 splines. How to do that?

Hi Mala, I mean something like this, I used Trim with the Isocurve option to trim out a section of the torus. Then the rotation is introduced by rotating the objects to be deformed by the Flow to be rotated with respect to the base plane:





- Michael

Sorry for that confusion - Pilou, you made that suggestion I thanked Michael for...(new messages are shown for me alone on a webpage and then I do not see what was before...confused...)

Ok - this step is clear for me. What I do not know is how to make the topografy/surface out of the curves and the oval?

Hi Mala, it can be difficult to get a good surface with cross sections running in one direction like that. It can get a pinched type shape at the tips as the profiles collapse down to a point.

You might try a more radial type construction, maybe a loft with loft style = "loose" through sections like this:







- Michael

As you can see the Michael example result is "inside" so just enable case "Flip Surface Normal" in the Flow Menu fonction

For the surface maybe this if i well understand your question...
Of course curves 3 & 7 can be an Arc little rounded... (2 little white spheres show trimming points of the oval curve)


PS Crossing Michael message ! :)
So you have 2 methods ! Loft & NetWork ! :)
and this one more general by Chipp Walters for any surfaces!

Bon courage!

Hi,
perhaps the following method may help.
Cheers
Barry

Thanks Barry. I cannot follow fully. What is with the back seam? You mean it should be placed there in order to get no surface trouble where the crease is placed?
After rotation you flowed it, I guess. And it must be rotated before flowing it...I try that out...

Now I begun with modelling the crease new.
First I start with the concept of michael, which brings a shape that comes near to my technical efforts.
And - what shall I say - I has not the moi-skills to bring it to the end by myself.
Perhaps somebody here give me a kick how to go further...

May somebody take look onto my try of michaels concept? I cannot go further...hmmmm´....

You must add a " Top Point" on the Loft Loose for more easy search form!

And you can run it in Real Time at the end of the Function for find the best form for you!
Of course it will be the same for any curve(s) of the surface (So change also the size in real Time of them!
will show a moving surface!
(not show here) ;)



With change of size, place etc...

Hi Mala, yes like Pilou says above you need to place a point object for the last profile of the Loft.

You can draw in a point object using Draw curve > More > Pt. It should be placed in the same plane as the ending curve, like this:



You can then select these 3 curves and also the point:



And then use Construct > Loft with the "Loft Style = Loose" option:



- Michael

I´m some steps more on my last way f0r this project.
Thanks for the point. I never saw this object before...
Like you may see the crease is at the place where it belongs. But not outside and not rotated.
How do I fix that?

P.S.: a profile line near the loft curfes is not important? Michael, I saw that kind of profile in your dummy of a crease...