If I understood correctly, I should have planned better, not applied the fillet to the details around the cylinder before I made the cut I did. I understand that a value that is close to 3 causes the lines to cross and cause an error, what I do not understand is why with a higher value it does not happen, at a greater radius these lines should cross each other, in the end I leave it with a 3.1 radius after all this was just practice. Thank you very much Michael