issues with 3d model from splines (mostly open edges)

[Anonymous]

Hi, I did the following:

1. create geosphere segments=8, radius=100

2. splines->section, array with 20 copies z=4 (image 1), edit spline, attach multiple all splines to create one object with horizontal splines, weld vertices on resulting spline with threshold 0.01

3. compound object-> terrain, edit poly, and when scaling all polygons with pivot point center, it's visible that these polygons does not connect to each other, they are also different heights (I would rather need to have all polygons with height z=4, which is one level, rather than some with height 8, some with 12)

4. welding vertices with threshold=0.01 reduced vertices count from 19k to 6k, but there were still open edges or separated 2d polygons, also apparently many edges missing which results in weird separate vertices

anyone has ideas what I could do better in order to reach layered sphere shape? maybe splines from geosphere shape could be done better than with section, maybe terrain compound object is bad idea, maybe there is some modifier for fixing this kind of problems in mesh? I know about STL check, but it shows about 1400 errors (open edges and duplicate faces), fixing it manually would be large amount of work, maybe there is better way to make mesh so these errors would not happen

[CAMedeck]

I would start with a Sphere, not a Geosphere.  That way all of your splines generated will have an equal number of vertices and they'll be stacked nicely.  

When you attach all the splines, start with the bottom spline and attach them individually, in order from bottom to top.  Then add a Cross Section modifier, this will add segments between the splines.  Now add a Surface modifier, and it will make a face wherever the splines make a quad.