Extrude or Shell+trim ?

Hi Pilou - If you look at the original model, it has a kind of "steep"-ness to it, that is the type of thing generated by extrude.

Shell will produce something like this:



That kind of has movement in many different directions, the new surface is along the surface normal of the original shape and not just in one single direction.

Extrude moves only in one single direction, that's more like the original shape.

- Michael

yes, but the original form is not" natural" and difficult to built in reality and dangerous to use ;)

Thought I would have a quick play.

I made profiles/rails from the shape given,.. added fillets to the profiles, then swept the surfaces.

This last one is more confortable :)

verry good , manz !!!!

Exactly what I wanted to do , can you explain me the progression.

I had tested, but I do not arrive at the same result!

Vincent

Hello,

You just now need to make a sweep using profiles from the part you have made(with the rads), using rails from the seat part.

Select the back and join the edges for the profile, then select the seat, and copy paste the edges for the rails. Then use sweep.



Just be careful with the rails, you will need to trim/rotate the back rail or you will get a bad blend (the surface will have creases)



Hope that helps, if not, I will post the model and explain more.

Thanks manz

It's verry good solution ..

verry Thanks

Vincent