A system for making curved cuts of a work piece, the system including a template including a profiled groove spanning from a first end to a second end, the groove dividing the template into distal and proximal halves, at least one profile of a curved cut is part of the groove; a saw including a saw blade; a turntable including a platform and a base upon which the platform is rotatably supported; and a mobility means to which the platform is attached, the mobility means is configured to allow the turntable to traverse between the two ends and a direction transverse to a direction defined by the two ends, wherein the work piece is disposed under the groove of the template and the saw blade is configured to be guided through the groove to cut the work piece according to the at least one profile of a curved cut.

A band saw kit including a band saw and an angle guide. The band saw includes at least one wheel for supporting a saw blade, a motor operable to drive the blade to cut a workpiece, a frame, and a workpiece bumper coupled to the frame. The workpiece bumper includes a slot configured to receive the blade, a first engaging surface defining a first plane, and is configured to be generally perpendicular to the blade as the blade passes through the slot. An angle guide is configured to be coupled to the workpiece bumper and includes a second engaging surface for engaging a workpiece. The second engaging surface defines a second plane. A cut angle is defined by an angle between the second plane and the first plane when the angle guide is coupled to the workpiece bumper.

A band saw kit including a band saw and an angle guide. The band saw includes at least one wheel for supporting a saw blade, a motor operable to drive the blade to cut a workpiece, a frame, and a workpiece bumper coupled to the frame. The workpiece bumper includes a slot configured to receive the blade, a first engaging surface defining a first plane, and is configured to be generally perpendicular to the blade as the blade passes through the slot. An angle guide is configured to be coupled to the workpiece bumper and includes a second engaging surface for engaging a workpiece. The second engaging surface defines a second plane. A cut angle is defined by an angle between the second plane and the first plane when the angle guide is coupled to the workpiece bumper.

A method of assembling a gearcase cover assembly of a reciprocating saw. The method includes providing a gearcase cover with a cylindrical opening and a receiving portion, providing a shaft with a yoke affixed to the shaft, inserting a first end of the shaft into the cylindrical opening and rotating the shaft such that a second end of the shaft sits in the receiving portion.

A power tool includes a motor having an output shaft rotatable around a first axis, a spindle rotatably supported around a second axis, a transmitting mechanism configured to reciprocally rotate the spindle within a specified angle range around the second axis, an elongate support body supporting the motor, the spindle and the transmitting mechanism, an elongate housing that houses the support body, and a first elastic member interposed between the housing and a first end part of the support body and connecting the housing and the support body so as to be movable relative to each other. The spindle is supported in the first end part such that the second axis crosses the direction of a longitudinal axis of the support body. The support body has a weight provided to increase an inertia moment of the support body around the second axis.

A power tool includes a motor having an output shaft rotatable around a first axis, a spindle rotatably supported around a second axis, a transmitting mechanism configured to reciprocally rotate the spindle within a specified angle range around the second axis, an elongate support body supporting the motor, the spindle and the transmitting mechanism, an elongate housing that houses the support body, and a first elastic member interposed between the housing and a first end part of the support body and connecting the housing and the support body so as to be movable relative to each other. The spindle is supported in the first end part such that the second axis crosses the direction of a longitudinal axis of the support body. The support body has a weight provided to increase an inertia moment of the support body around the second axis.

A tool for removing a bushing from a workpiece includes a tool body, a first reference, and a second reference for positioning the tool body on a workpiece. A saw slot is defined through the tool body to provide access to the workpiece for a saw blade. A saw guide is proximate the saw slot, the saw guide arranged to position a saw blade in a cutting plane spaced apart from the workpiece for removing a segment of a bushing fixed to the workpiece relative to the first and second references.

A saw system capable of cutting through a workpiece in one stroke is provided. The saw system includes a base, a turntable mounted on the base for rotation about a vertical axis, a support structure defining a cutting axis and fixedly attached to the turntable, and an elongated blade including a cutting edge. The turntable has a substantially planar support surface for supporting a workpiece. The support structure includes a pair of parallel sliding members, wherein the sliding members are disposed in a direction substantially parallel to the cutting axis. The elongated blade is spaced apart from the sliding members and is movable along the sliding members. The cutting edge includes a proximal end and a distal end, wherein an angle between an imaginary line connecting the distal end of the cutting edge to the proximal end thereof and its projection onto the turntable is an acute angle.

Provided is an alignment tool for a cutting arrangement including a cutting apparatus with a cutting edge for treatment of a workpiece, especially a rotor blade of a wind turbine, in which the alignment tool includes at least one fixation means for fixing the alignment tool to the workpiece and at least one guiding structure to guide the cutting edge of the cutting tool.

Provided is an alignment tool for a cutting arrangement including a cutting apparatus with a cutting edge for treatment of a workpiece, especially a rotor blade of a wind turbine, in which the alignment tool includes at least one fixation means for fixing the alignment tool to the workpiece and at least one guiding structure to guide the cutting edge of the cutting tool.