Hi ugotaccpaced,

> as I am getting some gaps between segments
> as shown below.

What you see in that screenshot there is actually not necessarily a true gap - that is just a display artifact.

Video cards don't know how to display surface objects directly, video cards are focused on displaying triangles. So the shaded surface that you see actually comes from a set of triangles that are created from the surface. Sometimes if too few triangles were created in a particular area it may leave a kind of rough appearance to the object where you see some evidence of the triangulation - that's what's happening in that spot.

That can happen anytime you have 2 surfaces that touch each other but are not joined together, because in that case each surface can get meshed with a slightly different structure and the triangles may not align where the surfaces happen to touch. If you join the surfaces together with the Join command, then the display mesh will have a unified structure in those areas and you won't see that kind of artifact anymore in that spot.

If the pieces refuse to join together, then that's when you know you have an actual gap between the surfaces, and there is actually a problem currently where surfaces created by Network use a somewhat looser accuracy and can sometimes be just outside of the join tolerance. If that happens you can get them to join by scaling them down first, see this message for some details:
http://moi3d.com/forum/index.php?webtag=MOI&msg=3939.2

But don't get too worried just seeing some triangulation artifacts like in your screenshot there - those can show up even if the actual surfaces are 100% touching without the slightest gap between them, since the display is only done with a triangulated approximation of each of the true surfaces.

It can be a good idea to do the network with some longer curves instead of just piece-by-piece as well though - it will tend to make smoother results. If you do it in pieces you will end up with creases where the pieces meet because each piece has no knowledge of the adjacent ones. When you include more sections directly in the creation of a single surface it helps to make a smoother result.

See these previous posts for some illustrations on how creating a larger surface (or curve) can help with smoothness, as compared to doing it in smaller patches:
http://moi3d.com/forum/index.php?webtag=MOI&msg=1398.18
http://moi3d.com/forum/index.php?webtag=MOI&msg=1398.19

- Michael