Fig. 1From: Fabrication of 3D-printed hygromorphs based on different cellulosic fillersa CAD-model of the PLA-based hygromorph consisting of mutually perpendicular passive layers (green) and an active layer (red). The length and width is 5 cm. b and c Schematic illustration of the axial and radial tensile bars with the corresponing print paths for the determination of the elastic moduliBack to article page