A communicator in one aspect of the present disclosure includes a connector, a communication circuit, and a communication controller. The connector is electrically coupled to an electric working machine. The communication circuit performs wireless communication. The communication controller cyclically transmits operational information without specifying a recipient via the communication circuit in response to an operating mode of the communication controller being set to an operation-transmission mode. The operational information indicates an operating state of the electric working machine.

A communicator in one aspect of the present disclosure includes a connector, a communication circuit, and a communication controller. The connector is electrically coupled to an electric working machine. The communication circuit performs wireless communication. The communication controller cyclically transmits operational information without specifying a recipient via the communication circuit in response to an operating mode of the communication controller being set to an operation-transmission mode. The operational information indicates an operating state of the electric working machine.

A method for operating a system that includes a main machine tool, an auxiliary device, and a transmission device with a first sending and receiving device assigned to the main machine tool and a second sending and receiving device assigned to the auxiliary device includes sending a first signal that represents a connection inquiry from the first sending and receiving device to the second sending and receiving device after an actuation of an input device of the main machine tool by a user. A second signal that represents a connection response from the second sending and receiving device is sent to the first sending and receiving device after an actuation of an actuating device of the auxiliary device by the user. The method further includes activating and/or testing an emergency cutout functionality of the actuating device by the actuation of the actuating device of the auxiliary device by the user.

A machining centre is disclosed for cutting an object in the form of a slab including a support plane arranged to support the object, a machining unit provided with a cutting tool that is rotatable to cut the object, and with a fluid jet cutting device that is also drivable to cut the object; the machining unit is movable with respect to the support plane along a first axis, a second axis and a third axis of a triad of orthogonal axes to move the cutting tool and the fluid jet cutting device to/from said support plane, the machining unit is further rotatable about a first rotation axis to rotate the cutting tool and the fluid jet cutting device with respect to the support plane; the machining unit is provided with a handling device arranged to support and to move the fluid jet cutting device with respect to the fluid jet cutting device at least along a direction that is transverse to the first axis of rotation.

A machining centre is disclosed for cutting an object in the form of a slab including a support plane arranged to support the object, a machining unit provided with a cutting tool that is rotatable to cut the object, and with a fluid jet cutting device that is also drivable to cut the object; the machining unit is movable with respect to the support plane along a first axis, a second axis and a third axis of a triad of orthogonal axes to move the cutting tool and the fluid jet cutting device to/from said support plane, the machining unit is further rotatable about a first rotation axis to rotate the cutting tool and the fluid jet cutting device with respect to the support plane; the machining unit is provided with a handling device arranged to support and to move the fluid jet cutting device with respect to the fluid jet cutting device at least along a direction that is transverse to the first axis of rotation.

A cutting apparatus having adjustable direction, according to the present invention, can comprise: a cutting frame; a cutting shaft disposed at the front of the cutting frame and a cutting blade fitted into the cutting shaft, when the proceeding direction of the cutting apparatus is the front and the opposite direction thereof is the rear; a direction-adjusting unit positioned below the cutting frame at the rear of the cutting frame so as to be connected to the cutting frame and adjust the cutting shaft so that same can rotate; and an intermediate frame for supporting the direction-adjusting unit.

A floor saw for sawing in a concrete surface segment (160), the floor saw comprising a circular cutting blade (110) arranged transversally offset from a centrum line (C), which centrum line (C) is aligned with a forward direction (F) of the floor saw, the floor saw further comprising at least two supporting wheels (120) arranged to support the floor saw on the concrete surface segment (160), out of which supporting wheels at least one is a drive wheel, a sensor arrangement (140) configured to determine a current yaw motion of the floor saw, and a control unit (130) configured to obtain a desired yaw motion setting, wherein the drive wheel is arranged on an opposite side of the centrum line (C) compared to the circular cutting blade (110) and arranged to generate a respective variable wheel force by a respective first electric machine controlled by the control unit (130), and wherein the control unit (130) is arranged to control the first electric machine to reduce a difference between the current yaw motion of the floor saw and the desired yaw motion setting.

A system, method, and apparatus for conveniently and accurately cutting material such as trim, tile, profiles, Schluter trim, or other such non-flat material which are difficult to hold steady, comprises a tool body, the tool body configured to have an adjacent side, an opposite side, and a hypotenuse, a hypotenuse slit formed in the tool body, a second slit formed in the tool body, and an indentation in the tool body.

Systems for cooling and directing a cutting wire. The systems include a water cooling box which permits cooling a cutting cable without any loss of cleaning/cooling fluid or contamination of the driving elements of the system. The systems also include a plurality of cutting wire directing elements which permit multiple cutting directions without derailing of the wire out of the guiding pulleys.

Systems for cooling and directing a cutting wire. The systems include a water cooling box which permits cooling a cutting cable without any loss of cleaning/cooling fluid or contamination of the driving elements of the system. The systems also include a plurality of cutting wire directing elements which permit multiple cutting directions without derailing of the wire out of the guiding pulleys.