Techniques for three dimensional printing of reinforced wall structures using extruded solidifiable material includes printing a first wythe that comprises a first plurality of stacked elongated beads of extruded material, printing a second wythe that comprises a second plurality of stacked elongated beads of extruded material, and building a porous layer disposed between the first wythe and the second wythe. In some examples, embedded reinforcement using mesh, wire, rebar, or other horizontally, diagonally, or vertically-emplaced members may also be performed, where the embedded reinforcement is placed between wythes or within (e.g., disposed within a bead of material, embedded reinforcement is placed) individual beads of a wythe.

A concrete container has a barrel having an open top, a closed bottom, and a discharge conduit near the closed bottom extending away from the barrel, a hose connected to the discharge conduit, and a valve attached to the discharge conduit.

A printer device for creating a concrete support structure of a passenger transport system configured as an escalator or moving walkway in an existing building. The printer device has at least one printer guide device, a 3D concrete printer device, which is arranged so as to be movable along the printer guide device, and a printer controller. The printer guiding device comprises at least one guideway whose guide path can be adjusted at least in the vertical direction in relation to its spatial position of use.

A device for additive manufacturing of a component includes a material dispensing unit for depositing a building material and an actuator assembly which is designed to move the material dispensing unit over a work surface in order to deposit the building material layer by layer in predetermined print paths. The device has at least one first guide leg which is designed to shape a first surface of the one or more layers of building material deposited by the material dispensing unit. The at least one first guide leg is displaceable and driven by a first actuator, in at least one translational degree of freedom (x, y, z) relative to the material dispensing unit. The at least one first guide leg is driven by a second actuator so as to be pivotable relative to the material dispensing unit in at least one rotational degree of freedom (dx, dy, dz).

A gantry-based 3D printer contains two vertical columns, connected with each other by a horizontal fixed beam, designed with the possibility of moving along rail guides. The rails are mounted on the printer base. A cross beam is installed on the vertical columns designed with the possibility of moving in the vertical direction; and the carriage with the print head attached to it and the possibility of longitudinal movement is mounted on the cross beam. The rails are equipped with an alignment system, which contains washers, nuts and screws, the latter of which are embedded in the base of the printer. The vertical columns and a cross beam are equipped with V-shaped rails with an additional leveling system, and the vertical columns and a cross beam are moved by roller carriages with the help of a drive and helical rack.

A composite material and method for making the same is disclosed. Also disclosed are methods for printing the composite material and devices which are used for printing the composite material. The composite material comprises roving which is impregnated with thermoplastic material via a modified pultrusion method. The composite material is then used in 3D printing of buildings either in combination with concrete printing or alone. The composite material may be extruded in solid form or in a soft form, depending on the extruding mechanism employed by a given 3D printer. The material is printed by 3D printers employing polar coordinate system software and hardware.

This invention discloses a rack structure for an in-field 3D construction printer, which comprises the vertical supporting posts consisting of connected standard vertical supporting post segments in two rows with symmetrical arrangement, a printing platform, a power and material storage platform, and lifting mechanism; said two rows of the vertical supporting posts are symmetrically arranged and fixed on the ground; the printing platform, and the power supply and material storage platform are fixed on the vertical supporting post through their respective cavities, and then the printing platform and the power and material storage platform are bolted on the vertical supporting post; the steel wire rope runs through a lifting drum, to a pulley block on the side of the power supply and material storage platform, and then from the intermediate pulley block to the pulley block on the side of the printing platform.

A slurry dispense system utilizes a buffer chamber to release the pressure from the supply pump, and buffer the irregular flow rate of the supply pump. It also utilizes a positive displacement pump to control the dispense flow. With the help of the buffer chamber, the positive displacement pump is able to provide a constant flow rate, and can be accurately controlled. A high resolution and a high speed can be achieved at the same time.

A computer-implemented method is employed for actuating a 3D printer for an additive manufacturing method, in particular filament printing, of structures of a building with concrete or other construction materials. The method may include reading in a 3D model via a CAD interface, in which model the structures are represented in an identifiable manner in structural data in a first design format, reading in printer parameters via a printer interface which parameters represent requirements and/or design specifications of the 3D printer and executing a structure conversion algorithm which uses the structural data represented in the first design format to calculate filament structural data in a second design format for a filament structure on the basis of the printer parameters which have been read in. Control instructions are calculated based on the calculated filament structural data, and the calculated control instructions are transmitted to the 3D printer for the purpose of control.

A 3D printer with a lift mechanism is disclosed. The 3D printer is coupled to the lift mechanism which is in turn coupled to a base or the ground. The lift mechanism comprises telescopically extendable columns comprising concentric cylinders positioned within one another, so as to extend and collapse fully, thus raising and lowering the 3D printer to a specific height. The lift mechanism further comprises extendable and lockable diagonals which connect neighboring telescopic columns at their top portions in a helical fashion. The diagonals are installed for sturdiness and support as the lift is operated, as well as to position the lift at a desired height when the diagonals are locked in place. The lift mechanism may comprise 2 telescopic cylinder columns or 3 or more telescopic cylinder columns. The lift mechanism comprises at least a first stage and an intermediate stage, and optionally a last stage.