@takesh h said: @north_frost said: Is it possible to solve it with this model? Thanks! Yes, I said so. Next time, try it for yourself. Why I asked was that the seam is still visible, not nearly as much, I can accept the small joint that is left. Your method will save me many hours of work ahead. @massimo said: Simply explode your two sub-groups. It will work. But maybe a too destructive approach. If the model was smaller had it worked but now the size is 29MB. Thanks for the help you all!!