lc = 0.1; Point(1)={0.0,0.0,0.0,lc}; Point(2)={1.0,0.0,0.0,lc}; Line(1)={1,2}; Extrude Line { 1, {0,0.1,0.0} } { Layers { 10, 10, 1 }; Recombine; }; // The above command should number the new surface 10, // however in practice the new surface number is 5. // Is this a bug? or am I doing something wrong?