An adaptive cutting system is presented that facilitates cutting workpieces in new and different ways in a fun, easy, fast, accurate and safe manner. The system includes a benchtop having a grid of bench dog holes across its surface as well as a pair of table tracks embedded within its surface. An edge track extends around the benchtop and a pair of hinge members are connected to the edge tracks that also connect to a saw track that is movable between a raised and lowered position. The system also includes narrow rip stops, wide rip stops, bench dogs and a miter gauge all of which work in concert with the on-table features to facilitate on-table measurement and alignment of workpieces for performing cutting operations.

Track saws with self-adjusting rib-guide assemblies and methods of operating self-adjusting rib-guide assemblies of track saws are disclosed herein. The track saws include a motor, an arbor, and a base plate. The base plate defines an arbor-facing side and an arbor-opposed side. The base plate includes a rib-receiving channel and a self-adjusting rib-guide assembly. The self-adjusting rib-guide assembly at least partially defines the rib-receiving channel and is configured to automatically accommodate a range of raised rib transverse widths. The methods include positioning a raised elongate rib of the track within a rib-receiving channel of a base plate of the track saw. During the positioning, the methods also include establishing a contact force between the raised elongate rib and the self-adjusting rib-guide assembly. Responsive to the contact force, the methods further include moving at least a portion of the self-adjusting rib-guide assembly relative to a remainder of the track saw.

A pressing member is rotatably supported by a fixing screw shaft via a ball bearing. The pressing member is made of synthetic resin and is larger in diameter compared to that of the fixing screw shaft. A connection bar is pressed by the pressing member by fastening the fixing screw shaft, and the position of the connection bar is thereby fixed. Because the pressing member has a large diameter, a dent is not generated on the connection bar. Furthermore, because the pressing member is not rotated in the fixed position, the position of the connection bar is not offset, enhancing the ability of fixing the connection bar with precise adjustment.

A pressing member is rotatably supported by a fixing screw shaft via a ball bearing. The pressing member is made of synthetic resin and is larger in diameter compared to that of the fixing screw shaft. A connection bar is pressed by the pressing member by fastening the fixing screw shaft, and the position of the connection bar is thereby fixed. Because the pressing member has a large diameter, a dent is not generated on the connection bar. Furthermore, because the pressing member is not rotated in the fixed position, the position of the connection bar is not offset, enhancing the ability of fixing the connection bar with precise adjustment.

A power tool, for example, a portable circular saw, includes a fan, a motor configured to rotate the fan, an output part or shaft driven by the motor, a motor housing that houses the motor, a grip housing connected to the motor housing, a trigger associated with the grip housing, and a brake member configured to brake a rotation of the motor, the brake member being mounted inside the grip housing. The brake member may be a resistive element of a rheostatic braking system. The housing and fan are configured such that cooling air is directed to cool the brake member.

For use upon machinery in a wood shop or any industrial facility where it is desired to operate upon an object's unmarked centerline, such as with a powered saw table, drill press or any other apparatus required for the task: The sine and cosine of a triangle—are used to assure that as a certain component is moved a given distance, a guide fence is moved transversely just a fraction of that distance—preferably one-half—away from or toward the task performing instrument—a saw blade, drill bit or other operable tool. Thus, if the distance moved by the component equals the width of the piece to be worked upon, where the trigonometric sine is such that the guide fence is moved half that distance, given certain further adjustment, the task performing instrument is caused to operate precisely upon the piece's centerline, represented by one-half its width.

A circular saw miter system for includes a circular saw that has a guide and a blade. A stand is provided and the stand may be positioned on a support surface. The stand may have a board placed thereon. A miter is removably coupled to stand and the miter may position the board at a selected angle on the stand. A pair of tracks is provided and each of the tracks is coupled to the stand. The circular saw is slidably coupled to the tracks and the circular saw may be manipulated. Each of the tracks is positioned above the miter. Thus, the circular saw may cut the board at the selected angle.

A circular saw miter system for includes a circular saw that has a guide and a blade. A stand is provided and the stand may be positioned on a support surface. The stand may have a board placed thereon. A miter is removably coupled to stand and the miter may position the board at a selected angle on the stand. A pair of tracks is provided and each of the tracks is coupled to the stand. The circular saw is slidably coupled to the tracks and the circular saw may be manipulated. Each of the tracks is positioned above the miter. Thus, the circular saw may cut the board at the selected angle.

Ring cutting jigs are disclosed that include a base; and a sliding brace. The base may include a platform and a pair of arms. A saw guide slot may be positioned within the base. Channels may be included within the base such that the sliding brace may move parallel to the channels with the assistance of pins that ride in those channels. The cooperation of the base and the sliding brace may act to secure a coil between the base and the sliding brace such that the coil may be cut into jump rings.

Ring cutting jigs are disclosed that include a base; and a sliding brace. The base may include a platform and a pair of arms. A saw guide slot may be positioned within the base. Channels may be included within the base such that the sliding brace may move parallel to the channels with the assistance of pins that ride in those channels. The cooperation of the base and the sliding brace may act to secure a coil between the base and the sliding brace such that the coil may be cut into jump rings.