A method to control a power tool including the method steps: specifying the rotational speed of the drive at a first value, measuring a first amplitude of a signal, filtering the signal within a frequency range, measuring a second amplitude of the filtered signal, reducing the rotational speed of the drive to a second value if the first amplitude exceeds a first quantity and if the second amplitude exceeds a second quantity, and incrementally increasing the rotational speed of the drive to the first value, whereby each incremental increase of the rotational speed only takes place once the first amplitude remains below the first quantity for a time interval, and the second amplitude remains below the second quantity. A power tool that uses this method, includes: a drive, an acceleration sensor a filter, and a control unit.

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 system for performing interactions within a physical environment including a robot base that undergoes movement relative to the environment, a robot arm mounted to the robot base, the robot arm including an end effector mounted thereon and a tracking system that measures a robot base position indicative of a position of the robot base relative to the environment. A control system acquires an indication of an end effector destination, and repeatedly determines a robot base position using signals from the tracking system, calculates an end effector path extending to the end effector destination at least in part using the robot base position, generates robot control signals based on the end effector path and applies the robot control signals to the robot arm to cause the end effector to be moved along the end effector path towards the destination.

The present application provides a large-sized single crystal cutting device and a method of using the same. The device includes a cutting system, a commutation system, and a detection system. The cutting system includes a cutting line, a pay-off axis, a guide wheel, and a take-up axis. The commutation system is disposed between the pay-off axis and the take-up axis to adjust a tension and a line speed of the cutting line. The detection system is configured to detect the tension and the line speed of the cutting line.

The present application provides a large-sized single crystal cutting device and a method of using the same. The device includes a cutting system, a commutation system, and a detection system. The cutting system includes a cutting line, a pay-off axis, a guide wheel, and a take-up axis. The commutation system is disposed between the pay-off axis and the take-up axis to adjust a tension and a line speed of the cutting line. The detection system is configured to detect the tension and the line speed of the cutting line.

A device system, including a remote control (13) having a device housing (31) and a first radio unit (38), a tool device with a second radio unit and a radio link which connects the first radio unit (38) of the remote control (13) to the second radio unit of the tool device. The first radio unit is (38) is arranged on a front side (57) of the device housing (31), wherein the front side (57) is lying opposite a rear side (56) of the device housing (31) facing the operator in a working position of the remote control (13).

The invention relates to a ceramic cutter having liquid-cooling by immersion of the cutting disc, comprising: a support frame; an electric motor for actuating a cutting disc; a tray containing water for cooling the cutting disc by immersion; an auxiliary water tank, which is removable, disposed above the cooling tray and provided with a gravity-driven water outlet for discharging water into the cooling tray, said outlet being accommodated in the tray and being disposed at a height corresponding to a predetermined level of the water for cooling the cutting disc by immersion.

The invention relates to a ceramic cutter having liquid-cooling by immersion of the cutting disc, comprising: a support frame; an electric motor for actuating a cutting disc; a tray containing water for cooling the cutting disc by immersion; an auxiliary water tank, which is removable, disposed above the cooling tray and provided with a gravity-driven water outlet for discharging water into the cooling tray, said outlet being accommodated in the tray and being disposed at a height corresponding to a predetermined level of the water for cooling the cutting disc by immersion.

A wall cutting guide includes a guide member for guiding a cutting tool, the guide member having an opening therein and the opening having first and second sides; and a clamp. The clamp includes a deformable locator which can be deformed by a variable amount, a spindle, and a handle. The locator is arranged to be inserted in a hole in a wall. The spindle extends through the opening and out of the first and second sides of the opening. On the first side of the opening the handle is connected to the spindle. On the second side of the opening the locator is connected to the spindle. The handle is adjustable to control the amount by which the locator is deformed thereby to locate the locator in the hole.

A wall cutting guide includes a guide member for guiding a cutting tool, the guide member having an opening therein and the opening having first and second sides; and a clamp. The clamp includes a deformable locator which can be deformed by a variable amount, a spindle, and a handle. The locator is arranged to be inserted in a hole in a wall. The spindle extends through the opening and out of the first and second sides of the opening. On the first side of the opening the handle is connected to the spindle. On the second side of the opening the locator is connected to the spindle. The handle is adjustable to control the amount by which the locator is deformed thereby to locate the locator in the hole.