Each biopolymer layer consists of different material formulas printed into one another while they are still wet. The hydrogels can be blended on the print surface to create graded material transitions between regions. The base layer consists of an infill path with a lower toolpath density. The subsequent layers are printed directly into the first layer before it can begin to dry. Depending on the material formula and environment, hydrogels can be printed and mixed within 2 to 3-hours before they lose their fluidity and solidify. Hydrogel surfaces with the same materials and toolpaths will have noticeably different appearances because of the different order in which they’re printed.

The base layer uses a low-density infill path and with high-density lattice paths for subsequent layers. The toolpaths deposit additional material and mix existing hydrogel layers already on the print bed. The pattern, direction, and speed of toolpaths affect how successive layers are mixed.

The depth of the nozzle in the hydrogels determine the layering of different materials and the layers mixed. Hydrogels can either be printed below, inside, and on top of materials on the print bed. Slight changes in the height of the nozzle can result in dramatically different appearances.