A control system for an implement associated with a machine, the machine operating on a work surface lying in a surface plane, is disclosed. The system includes a base plate attached to the machine, the base plate establishing a plate plane and the orientation of the plate plane alters with changes in orientation of the base plate. The system may further include an orientation leveling system which includes an orientation sensor, one or more plate actuators for altering orientation of the base plate, and an electronic controller. The electronic controller is configured to determine if the plate plane is substantially parallel with the surface plane and actuate the one or more actuators to alter orientation of the base plate to position the base plate such that the plate plane is substantially parallel with the surface plane, if the plate plane is not substantially parallel with the surface plane.

An extruder nozzle includes a proximal end and a distal end. The proximal end includes a proximal cross-section. The distal end includes a distal cross-section. The proximal cross-section is different from the distal cross-section. 3D printable material is configured to flow through the extruder nozzle from the proximal end to the distal end, such that the extruder nozzle deposits a layer of 3D printable material on top of a prior layer of 3D printable material.

An extruder nozzle includes a proximal end and a distal end. The proximal end includes a proximal cross-section. The distal end includes a distal cross-section. The proximal cross-section is different from the distal cross-section. 3D printable material is configured to flow through the extruder nozzle from the proximal end to the distal end, such that the extruder nozzle deposits a layer of 3D printable material on top of a prior layer of 3D printable material.

An inventive boom arm for a concrete-distributing boom. The boom arm has an elongate box-profile support formed from two flanges and two webs connecting the flanges laterally. The boom arm has first and second articulation points spaced apart in the longitudinal direction of the boom arm. A first flange opening is disposed at the first articulation point and a second flange opening is disposed at the second articulation point. A sealing-partition seals a cavity region of the box-profile support at least in a region of the first and second flange openings. The sealing partition can be provided in the form of a plate that continuously spans the cavity region between the first and second articulation points and is connected laterally to the webs. The first articulation point is located at the end of the boom arm and is arranged within the cavity region and is covered by the partition plate.

An electrohydraulic control circuit for driving a hydraulically actuated actuating element (5, 6), by means of which a segment (5.3) of a manipulator, in particular of a large manipulator for truck-mounted concrete pumps, can be adjusted in terms of its orientation, wherein there are provided an electrically driven first valve (2.4), which is connected to hydraulic working lines of the actuating element (5.6) for the drive thereof, and leak-free check valves (2.5, 2.6) provided in the working lines of the actuating element (5.6), which valves are arranged on the actuating element (5.6) or on the segment (5.3) associated with this actuating element (5.6) and can be released for the normal operation of the actuating element (5.6), wherein the release of the check valves (2.5, 2.6) is driven by an electronic control unit (ECU) separate from the first valve (2.4) and the check valves (2.5, 2.6).

Methods, apparatuses, and systems to provide real-time adjustment for the three-dimensional printing of architectural structures are disclosed herein. An example apparatus includes a printing control processor configured to receive a model file that specifies a three-dimensional representation of a building structure to be printed. The processor slices the model file into individual layers. Each layer has a height corresponding to a height of a layer to be printed. The processor converts the layers into computerized instructions for a three-dimensional printer. During printing, the processor receives adjustment information that is indicative of an adjustment made by the three-dimensional printer during the printing of a current layer. The processor applies the adjustment information to subsequent computerized instructions that are to be executed after printing the current layer. The processor then executes the computerized instructions for the subsequent layers including causing the three-dimensional printer to print the layers with the adjustment.

A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic cylinder (110), first and second counter-balance valves (300, 400), first and second control valves (700, 800), and a selection valve set (850). The selection valve set is adapted to self-configure to a first configuration and to a second configuration when a net load (90) is supported by a first chamber (116, 118) and a second chamber (118, 116) of the hydraulic cylinder, respectively. When the selection valve set is enabled in the first and second configurations, the second and first control valve may fluctuate hydraulic fluid flow to the second and first chamber, respectively, to produce a vibratory response (950) that counters environmental vibrations (960) of the boom. When the selection valve set is not enabled, the first and second counter-balance valves are adapted to provide the hydraulic cylinder with conventional counter-balance valve protection.

In exemplary implementations of this invention, an actuated fabricator deposits structural elements (e.g., tensile structural elements) in a 3D pattern over large displacements. The fabricator is supported by at least three elongated support members. It includes onboard actuators that translate the fabricator relative to the ends of the support members. The fabricator is configured, by actuating different translations along different support members, to translate itself throughout a 3D volume. In some implementations, each of the actuators use fusible material to fuse metal tapes together, edge-to-edge, to form a hollow structure that can be shortened or lengthened.

A boom for a working machine, in particular a concrete-distributing boom for guiding a concrete delivery line, with a plurality of boom arms which can be moved into a working position and which are composed at least partially as a box construction of a plurality of side walls delimiting a cavity region, and with a sealing bulkhead arrangement for sealing a cross section of the cavity region, wherein the sealing bulkhead arrangement has a bulkhead wall provided peripherally with an at least partially encircling sealing groove, and wherein the sealing groove has arranged therein an elastic seal which bears tightly on the inside against the adjoining side walls.

An articulated boom includes a plurality of boom segments connected together via articulated joints. At least one of the boom segments includes a welded structure providing a box profile in which an upper flange and a lower flange are connected together by lateral web plates. At least one of the web plates, the upper flange, and the lower flange includes at least one reinforcing distortion.