A method of aligning a saw unit and a base. The saw unit further includes a front bevel angle adjustment bracket proximate a front end of the base and a rear bevel angle adjustment bracket proximate a rear end of the base. The saw unit further comprises a first fastener extending through a first elongated slot in one of the base or the front bevel angle adjustment bracket and a second fastener extending through a second elongated slot in one of the base or the rear bevel angle adjustment bracket. Each of the first and second elongated slots extends along a lateral axis oriented transverse to the longitudinal axis of the base to permit lateral adjustment of the saw unit relative to the base.

A system and method for monitoring and controlling the position of a bandsaw blade of a cutting machine used in sawmills are provided. The system comprises a light source, an imaging device and a processing structure for processing images captured by the imaging device and controlling the adjustment of the position of the bandsaw blade. The light source projects diffused light on a first side of the bandsaw blade through a diffuser member and the imaging device looks at a second side of the bandsaw blade. Each image captured by the imaging device shows a boundary line between a light area and a dark area, which represents the position of the cutting edge of the bandsaw blade. The position of the bandsaw blade then can be monitored and controlled for adjustment to its ideal position based on the measurement of the boundary line.

An easily operable, highly durable cutting machine finely adjusts the miter angle of a turntable. A cutting machine includes a turntable supported in a manner rotatable horizontally to a base and including a substantially disk-shaped table body to receive a workpiece and a table extension protruding forward from the table body, a cutting machine body located above the turntable and connected in a manner swingable vertically to the turntable, and a fine angle adjuster that adjusts a rotation angle of the turntable with respect to the base and including a rack on the base, a pinion located in the table body within an area of the table body as viewed from above and engageable with the rack directly or indirectly, and an operation part operable to rotate the pinion.

Power tool methods and systems are provided for aligning a power tool to implement an angled cut in a workpiece. The power tool includes a first distance sensor and a second distance sensor. The power tool measures a first distance to the workpiece with the first distance sensor and a second distance to the workpiece with the second distance sensor. The power tool calculates an angle between the power tool and the workpiece based on the first and second distances, and indicates the angle via an angle output indicator of the power tool. The power tool may measure an angle between the power tool and the workpiece using a proximate edge and a distal edge of the workpiece, and indicate whether the power tool maintains a correct angle as it traverses a cut through the workpiece from the proximate edge to the distal edge.

The invention relates to a sawing device for forming saw-cuts into a semiconductor product, including: a carrier for holding the semiconductor product, a saw blade, a first position sensor for determining the position of the semiconductor product held by the carrier, a second position sensor for determining the position of the saw blade, and a control unit configured for controlling the relative movement of the saw blade and the carrier, wherein the sawing device further includes a reference for linking the position of the first position sensor to the position of the second position sensor, wherein the control unit is configured to process, with aid of the reference, the positions determined by the reference sensors into a position of the point on the free surface of the semiconductor product relative to the point on the cutting edge of the saw blade, and, based on this positional information, control the relative movement of the saw blade and the carrier. The invention further relates to a method for forming saw-cuts into a semiconductor product.

A rotatable member is mountable on a tabletop of a power tool apparatus. The rotatable member includes a first work surface and a second work surface. The first work surface is on a first side of the rotatable member. The second work surface is on a second side of the rotatable member. The second side is different from the first side. The rotatable member is configured to move into a first position such that the first work surface is level with a surface of the tabletop. In addition, the rotatable member is configured to move into a second position such that the second work surface is level with the surface of the tabletop.

A power tool assembly includes a drop arm assembly movable along a drop path between a first drop arm assembly position whereat a portion of a shaping device supported by the drop arm assembly extends above a workpiece support surface and a second drop arm assembly position whereat the portion of the shaping device does not extend above the workpiece support surface, an actuator housing configured to house a first actuating device at an active location at which a force from the first actuating device is transferred to the drop arm assembly, the actuator housing including a slit configured to position a second actuating device at an inactive location, and a control system configured such that when the first actuating device is housed, the control system controls the first actuating device to transfer the force to the drop arm assembly when an unsafe condition is sensed.

A jigsaw that includes a housing assembly, a shoe member and an indicator. The housing assembly has a housing, a motor and transmission assembly received in the housing, an output member reciprocatingly driven by the motor and transmission assembly, and a trigger coupled to the housing and configured to control operation of the motor and transmission assembly. The housing defines a window. The shoe member is pivotally coupled to the housing. The indicator is pivotally disposed in the housing. A portion of the indicator is visible through the window. Movement of the indicator is responsive to movement of the shoe member such that a rotational position of the indicator is indicative of a position of the shoe member relative to the housing assembly.

A cutting apparatus for cutting a workpiece includes a chuck table having a holding surface for holding the workpiece thereon, a cutting unit having a spindle with a cutting blade mounted on a distal end thereof for cutting the workpiece held on the holding surface, an image capturing unit for capturing an image of an outer circumferential portion of the cutting blade mounted on the cutting unit, and a determining section for determining the orientation of the cutting blade. The outer circumferential portion of the cutting blade includes a plurality of protrusions each having a first surface for scraping swarf off from the workpiece when the cutting blade cuts the workpiece and a second surface connected to the first surface. The determining section determines the orientation of the cutting blade mounted on the cutting unit, according to an image captured of the protrusions by the image capturing unit.

A blade-height optimization indicator for a table saw determines based on the rotational position of one or more blade guards of the table saw as they are displaced by a workpiece being cut whether the blade-height of the table saw is optimized relative to the thickness of the workpiece and provides a visual GO/NO-GO indication depending on whether the blade-height is determined to be optimized.