A method for producing three-dimensional models by means of a layer construction technique, wherein particulate construction material is deposited in a defined layer onto a construction field and a liquid binding agent is selectively applied onto the construction material, a movement by a certain amount is performed and these steps are repeated, until the desired object is obtained, wherein the steps of deposition and application are performed substantially at the same time, and the particulate construction material is deposited by a coater and the liquid binding agent is applied by a print head , the coater being arranged downstream of the print head and following it a defined distance, and the print head and coater are moved at substantially the same speed, and the deposition and application take place in both the forward and the reverse direction, a plurality of coaters and print heads being provided, the relationship between the number b of coaters and the number d of print heads being as follows: d = b -1, wherein after the deposition of the particulate construction material in the forward direction by means of coater , the liquid binding agent is selectively applied to the construction material in the reverse direction by means of print head , and the print head and the coaters are moved on a displacement unit with common components at substantially one height in the device, wherein the printing means and coating means are arranged to operate in both the forward and the reverse direction, wherein the units of print head and coater are each combined into one process unit, wherein process units are arranged with an offset of one layer thickness, wherein layers are applied which are higher than the lowest print head during return travel, wherein a coater is located in front of the lowest print head to keep the particulate material away from the print head during travel. the particulate construction material is deposited by a coater and the liquid binding agent is applied by a print head , the coater being arranged downstream of the print head and following it a defined distance, and the print head and coater are moved at substantially the same speed, and the deposition and application take place in both the forward and the reverse direction, a plurality of coaters and print heads being provided, the relationship between the number b of coaters and the number d of print heads being as follows: d = b -1, wherein after the deposition of the particulate construction material in the forward direction by means of coater , the liquid binding agent is selectively applied to the construction material in the reverse direction by means of print head , and the print head and the coaters are moved on a displacement unit with common components at substantially one height in the device, wherein the printing means and coating means are arranged to operate in both the forward and the reverse direction, wherein the units of print head and coater are each combined into one process unit, wherein process units are arranged with an offset of one layer thickness, wherein layers are applied which are higher than the lowest print head during return travel, wherein a coater is located in front of the lowest print head to keep the particulate material away from the print head during travel. <EOS>