A crane apparatus with an integrated assembly for overcoming each dead position between primary and secondary parts of its operational arm includes a bearing framework attached to a chassis and is furnished with at least two telescopic supporting legs that are vertically arranged, and a bearing mast that is connected with the bearing framework, and an operational arm is attached in a pivot point and pivotable around a horizontal axis. The operational arm includes a primary part and a secondary part that are pivotally connected with each other. The secondary part is pivotal around the horizontal axis connected with the primary part of the operational arm via a dead position overcoming assembly that includes a rotational driving subsystem as well as a mechanism that is attached to part of a hydraulic cylinder for pivoting relative to the secondary part of the operational arm.

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.

An assembly includes an attachment arm having an axle extending from a first end of the attachment arm. The attachment arm of the detachable wheel assembly further includes a securing portion forming a second end of the attachment arm, the securing portion of the attachment arm including a pin positioned to extend above a first frame member of a gantry truss and to secure the first frame member between the pin and a portion of the attachment arm. The attachment arm also includes a frame support corresponding to a second frame member of the gantry truss such that the frame support supports the second frame member when the assembly is secured to the gantry truss, and the assembly includes a wheel rotatably attached to the axle of the attachment arm.

There is a truss structure, assembly and method of manufacturing a truss with a span L and a beam depth H. The truss having a main part includes a substantially planar top chord with a longitudinal centerline and webs connecting between the top chord and a bottom chord. The top chord is separated from the bottom chord by the webs. There is a top chord node where each web intersects with the centerline of the top chord and a bottom chord node where each web meets the bottom chord. At least two of the top chord nodes coincide with one another along the top chord. In use, the elements of the main part are in compression and the bottom chord includes a tension member.

A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second control valves (700, 800), and first and second blocking valves (350, 450). A net load (90) is supported by a first chamber (116, 118) of the hydraulic actuator, and a second chamber (118, 116) of the hydraulic actuator may receive fluctuating hydraulic fluid flow from the second control valve to produce a vibratory response (950) that counters environmental vibrations (960) on the boom. The first blocking valve prevents the fluctuating hydraulic fluid flow from opening the first counter-balance valve. The first blocking valve may drain leakage from the first counter-balance valve.

A mobile 3D printing device, system and method based on the addition of material intended to be attached to a lifting device with a single lifting cable or chain, including a printing head adapted to receive material and depositing it; fixing means adapted to link the printing head to the lifting device, and stabilization means adapted to stabilize the position of the printing head by a gyroscopic effect. The printing device enables the control of the printing of a structure to be printed, in particular the position of the printing head, to reduce the labor costs and the time to install such a device on a standard crane provided with a hook.

The present invention relates to a walking robotic cell for the manufacture of on-site printed buildings using a multi-axis 3D printing system, and a method for operating said walking robotic cell. The walking robotic cell comprises a quadruped mobile robotic system acting autonomously and remotely operated, a feeding device, and a multi-axis actuator, which is a reprogrammable electromechanical system, automatically controlled, and programmable offline or online in all its degrees of freedom from an external or remote computer.

An integrated box-type 3D printing device, having a support structure, a first bracket, a second bracket, and a printer body. The first bracket is movable back and forth in a first direction on the support structure. The printer body is arranged on the second bracket. The second bracket is movable back and forth in a second direction relative to the first bracket. The printer body is movable back and forth in a third direction on the second bracket. The support structure is provided with an accommodating space for accommodating the second bracket. The second bracket is foldable in the opposite direction to the third direction so that the second bracket is foldable into the accommodating space so that the integrated box-type 3D printing device assumes a transport and storage configuration when the second bracket is folded into the accommodating space.

A system and method are provided for manufacturing a tower structure. Accordingly, an interlocking form ring is additively manufactured with a first printhead assembly. The interlocking form ring defines a plurality of recesses in a radially inner or a radially outer face. A cementitious material is deposited within one or more of the recesses with a second printhead assembly. At least one reinforcing member is positioned within the recess with the second printhead assembly. The second printhead assembly is positioned adjacent to the cementitious material during the curing thereof so as to provide a slip form for the curing of the cementitious material.

A system for applying a building material, including: a movement device for modifying a site of application in a space; a first component of the building material; a second component of the building material; a mixer for mixing the first component and the second component, the mixer including a drive module with a first coupling element and a mixing chamber module with a second coupling element, the drive module and the mixing chamber module being detachably embodied, and the drive module and the mixing chamber module being actively interconnected in an application state of the system by means of the coupling elements.