An adjustable positioning structure for a feeding support plate of a circular sawing machine contains a magnetic element, a micro pneumatic cylinder, and a control button. The magnetic element is accommodated in a magnetic slider which is fitted with a guide column on a material feeding side of a table of the circular sawing machine and is configured to produce a change of a magnet value of the magnetic slider when the magnetic slider moves along the guide column reciprocately, such that a displacement value of the magnetic slider is calculated and is displayed by a display on the magnetic slider. The micro pneumatic cylinder is mounted on the magnetic slider and is configured to fix or release the magnetic slider relative to the guide column. The control button is arranged on the feeding support plate and is configured to control the micro pneumatic cylinder to operate.

A system assists during execution of a sequence of cuttings in a tree, wherein, during a cutting sequence, a first cut in the tree is followed by a second cut in the tree At least a part of an ideal course of the second cut depends on at least a part of a course of the first cut. An identification device identifies at least the part of the course of the first cut in the tree. A precalculation device precalculates at least the part of the ideal course of the second cut in the tree based on the identified part of the course of the first cut. An output device outputs cutting information for executing the second cut based on the precalculated part of the ideal course of the second cut.

An electronic component removal device comprising a cutting wire routed through a cutting region configured to receive an electronic component coupled to a substrate. The electronic component removal device can also include a leading actuator coupled to a leading end of the cutting wire to cause movement of the cutting wire in a cutting direction at a cutting speed. The electronic component removal device can further include a trailing resistance device coupled to a trailing end of the cutting wire to resist movement of the cutting wire in the cutting direction with a variable resistance. In addition, the electronic component removal device can include a leading tension sensor to sense a leading tension in the cutting wire between the cutting region and the leading actuator. The trailing resistance device can resist movement of the cutting wire with a resistance that varies based on the leading tension in the cutting wire.

A removably mountable abnormal motion detection device for abnormal motion detection of a power tool that includes a reactive device and a control device. The control device includes an abnormal detection system that utilizes a processor, one or more sensors; and a machine learning model trained to determine abnormal motion for the power tool. When it is determined by the control device that an abnormal motion has occurred or is about to occur in the near future, the control device communicates with the reactive device to engage a safety feature of the power tool.

An example pipe cutting tool includes a plurality of actuators and a plurality of cutters. Each of the plurality of cutters is connected to at least one separate actuator of the plurality of actuators. The at least one separate actuator is configured to move the cutter between a pre-deployed and deployed position. The deployed position is beyond the pre-deployed position. The plurality of cutters may include a first and second cutter, with the at least one separate actuator connected to the second cutter moving based, at least in part, on one or more cutting conditions. An example method of cutting a pipe includes extending a first cutter to contact the pipe, cutting at least a portion of the pipe using the first cutter, detecting a cutting condition, extending a second cutter based, at least in part, on the cutting condition, and resuming the cutting using the second cutter.

A positioner positions a guide ruler relative to a workpiece that is adjacent to the guide ruler while more stably retaining the guide ruler at the locked position without causing interference with a cutting operation. A positioner that positions a ruler body relative to a workpiece includes a contact member to be in contact with an edge of the workpiece and extendable along the edge of the workpiece, a support supporting the contact member in a manner rotatable on a lower surface of the ruler body, and a position retainer that retains the contact member at a rotational position.

A method assists during execution of a sequence of cuttings in a tree, wherein, during a cutting sequence, a first cut in the tree is followed by a second cut in the tree At least a part of an ideal course of the second cut depends on at least a part of a course of the first cut. The method includes the steps of: identifying at least the part of the course of the first cut in the tree; precalculating at least the part of the ideal course of the second cut in the tree based on the identified part of the course of the first cut; and outputting cutting information for executing the second cut based on the precalculated part of the ideal course of the second cut.

An object detection system in a saw includes an electrically conductive plate positioned at a predetermined distance from the implement, a detection circuit comprising a transformer, and a single cable connecting first terminal and second terminals of the transformer. The single cable includes a first conductor electrically connected to the first terminal of the winding and to the electrically conductive plate, a second conductor electrically connected to the implement, and an electrical insulator positioned between the first conductor and the second conductor.

A control unit controls a tree stem processing tool pivotably mounted to an articulated boom in such a way that orientation of the tool is changed when the tool is controllably rotated about a rotation axis that is oriented substantially vertically. the articulated boom being rotatably connected to a mobile work machine, The control unit is adapted to automatically apply a control mode in the control unit in which control mode a power-driven operation is controlled according to a predetermined dependency in such a way that one or more operating parameters influencing the power-driven operation vary as a function of a prevailing separation or a prevailing distance determined in relation relating to a predetermined hazard direction or predetermined hazard trajectory associated with the tool.

A power tool includes a housing, a power output element for outputting power, a motor for driving the power output element to output power, and a surface light source device for providing illumination. The surface light source device is mounted on the housing and the surface light source device includes a light exit surface allowing the surface light source device to emit light.