Hello guys, Lincoln, Brazil, Rio de Janeiro here
it is the final stand of my beauty Pyramid. I’ve had some problems with overlapping edges over each other without a vertex between them. The solution I’ve found is the plugin called tinyCAD, which do all the hard job for you. I think IT IS A MUST for everyone who have Blender and invariably gonna face some hard surface issues. Hope this link helps: https://github.com/zeffii/Blender_CAD_utils (link which I’ve found at this topic here, third answer)
And thanks for plugin tip!