Hi Dmarmor,
> Thanks, but if you keep the curve used for your construction you can modify
> the resulting shape isn't it?
Yup, that's the history feature where after you've created a surface you can edit the curves that went into it and it will recalculate as long as you haven't done some other type of edits on the surface.
> An other thing, I can't find a way to make a rail revolve using two rail curve, is it possible?
Not in rail revolve, but you can do a Sweep with 2 rail curves.
- Michael
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