How to merge Faces?

[cantwell.akos]

Hi, this is really annyoing me. I tried to shell this body but it doesn't work. Now I'm trying to manually loft the inside out by cutting it (using rails), but I can't merge the faces together to create a sketch for the whole face at once. Can anyone help?

[TheCADWhisperer]

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

[cantwell.akos]

Here is the file. The bodies in question are in the fuselage section, name fuselage 3 and wingroot. Thanks for the reply.

[TrippyLighting · Accepted solution]

I am assuming you did not inspect the curvature of your splines a single time (Inspect->Curvature Comb).

Many of your sketches are also missing tangency constraints, which results in lofted geometry with near tangent conditions and bad curvature. That is the reason these structures are not shelling.

Also, I would stay away from offsetting splines, because the resulting curvature of those offset spines is broken.

You have a lot of cleanup work to do in this model, and also need to use better techniques and pay attention to the loft UI and the tangency settings there.

[wersy]

I would not loft the hull in individual sections.

And by creating a separate sketch for each section, there is no tangential transition between the parts. This means that there is a kink at each transition, which is small but not necessary.
So I recommend to create the splines of the fuselage in longitudinal direction in ONE sketch.

By the way, I have learned a lot from @TrippyLighting  in this respect 🙂

Michael

[wersy · Accepted solution]

I created your fuselage with one loft.

And as @TrippyLighting  already mentioned, you have to make sure that half profiles are connected tangentially.

Michael

And yes, the profiles must also be adjusted to each other. If you take a closer look you will see dents.

Therefore it is better to draw the rails first, whereby the frames are only for orientation.

[cantwell.akos]

Thanks for the help and tips, I'm going to try to use them.