create surface

[fedefer]

I apologize to everyone for the banality of my request, but I couldn't find a solution alone.
use inventor rarely, only when I have to make pieces with 3d printer

I'm trying to create a cap for my sander and as you see in the picture I almost managed.
I say almost because I wanted to create a curved suferphragm, but I can't

I created the sketch 1 and the sketch 2 that represent the contours of the surface, and the sketches 3, 4, 5, 6 that represent the curvature that should have the surface.

But I'm not doing anything from all the evidence I did, he always tells me he can't do the operation with loft.

Please tell me what the exact procedure is?

Thank you.

 

[Giacomogaldino]

I'm trying. I am trying to create surfaces for a frame of glasses but without succeeding. say that for surfaces better use rhyno. apart from that I have often turned the solid into the surface and cut out the surfaces perfectly but without then being able to turn them into solid with the joint command. with the loft or sweep you usually have an initial and final closed contour. Plus if I don't run the loft just takes a curve as a guide, I go a lot to memory.

 

[Garen]

test the command "contour surface"

 

[Giacomogaldino]

do you have to have a 3d line in a single sketch or can it also be the union of more sketches?