Hi Axel,
> can you explain what conditions are required for an object to get merged with another one?
It needs to have a well formed set of curves produced by the surface/surface intersections.
If there are anomalies in the geometry like areas where a surface or edge is folded back on itself in self intersections that can cause problems.
> It happens that I insert an object to merge via boolean menu and one object completely disappears.
It's difficult to diagnose this just from a written description, I need to be able to examine the actual geometry to be able to give any more feedback on it.
Please post the .3dm model file or e-mail it to me at moi@moi3d.com .
- Michael
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