Hello,
I have purchased Moi3D after trial for a month. My graphic skills are zero but I like how it works and have been able to make some simple things.

I use for home 3d printing.

I have made this shape with curves and sweep. To 3d print it must be solid object. I can close ends using network tool. I was able to try blend with edges and it looked solid but it is not really enclosed object. Slicing program shows non-manifold and a surface does not show up.

I find often i get curves like this which cause me problems.

How do I properly close ends and make solid object?

thank you.

JM