hello!!! I think it's a newbie question, but, well, I can't get what I want until now!!!
as you can see on the joined picture, I want to sweep the profile number 1 along the rail number 2, but without any déformations, always the same inclination of the profile... How to set up? thank you for help!!!

Dans la version française
essaie Transformer / Trame / Courbe qui va positionner le profil avec des options le long de la courbe
et ensuite Tend (Loft)
Enfin si je comprends la question, ce qui n'est pas sûre! :)

Mais c'est mieux si le fichier Zippé du Format 3Dm est joint pour éviter les malentendus! ;)

Or the Sweep option of the Twist : FreeForm / Flat don't make the trick ?

Hi marcel,

> I want to sweep the profile number 1 along the rail number 2, but without any
> déformations, always the same inclination of the profile...

Sounds like you probably want to use the "Twist: Flat" option for sweep - that will make the profile to only rotate around one single axis line and it won't do any twisting or banking as it travels along the path.

That's an option in the command options for Sweep which shows up in the upper right corner of the main window when you are in the last stage of the sweep command. There's an example here:
http://moi3d.com/3.0/docs/moi_command_reference7.htm#sweep

- Michael