Considering now the in -plane connectivity along the direction at the perpendicular to the printing direction (Fig. 12c, d), a few bridges can be found between two channels in the [−45°/45°] case and much more are found in the [0°] case. This indicates that alternating the printing of a layer with another one at [90°] does not only enable to reduce the mean volume fraction of pores but also considerably reduces the connectivity of pores in the direction perpendicular to the printing. Fig. 12e, f enables to confirm the propensity of crisscross printing to reduce pores network connectivity: they show that out-of-plane bridges exist between two in plane porosity layers in the unidirectional printing case but none can be seen in the crisscross printing case. Focusing on the unidirectional case, the strong anisotropy of the porosity network can be thought to be responsible for the strong differences in the tensile behavior of the [0°] tensile specimens and the [90°] ones. But it cannot be the only source of differences: although [90°] tensile specimens figure out a higher volume fraction of pores and higher pore connectivity distances (in the three principal directions ofthe specimen) than crisscross specimens, they display tensile properties which are close to those of the crisscross specimens.