An articulated chop saw mast section (30) replaces a rigid prior art mast section (22) between a chop saw base (20) and a chop saw swing arm assembly (23′). The articulation of mast section (30) provides a front-to-rear longitudinal movement of the swing arm assembly (23′) along an axis that is parallel to the longitudinal axis of a chop saw cutting wheel (26), ultimately providing front-to-rear movement of the cutting wheel (26) along its longitudinal axis. The movement of wheel (26) in this fashion provides a means for optimum adjustment to the geometric relationship between wheel (26) and the material to be cut. The ability of the articulated mast to achieve optimum cutting geometry offers greater cutting efficiency by reducing the point or points of contact between wheel (26) and the material's specific profile.

A multi-link miter saw includes a base, a table supported on the base, a supporting unit connected to the table, a linkage unit connected to the supporting unit, a cantilever arm unit including a cantilever arm pivotally connected to the linkage unit and a connection member pivotally connected between the cantilever arm and the linkage unit for enabling the cantilever arm to be driven by the linkage unit and the connection member to move along a horizontal axis between the rear edge and front edge of the base, and a cutting unit pivotally connected to the cantilever arm unit. Based on the arrangement of the linkage unit and the cantilever arm unit, the cutting unit can be moved smoothly relative to the table, thus enhancing operation stability.

A sawmill includes a saw carriage and a swing saw which in turn has a circular blade and a drive shaft. The mill also includes a pair of ground engaging tracks. The saw carriage has a pair of posts/uprights each supporting an opposite end of a cross-frame, which incorporates a clamp at each end, and these can be tightened against one of the posts to stabilise the saw carriage. The saw cantilevers from the saw carriage such that the saw's drive shaft is to one side of the cross-frame regardless of whether the blade is in a vertical or horizontal cutting orientation. The carriage moves along the tracks to carry the saw to make cuts in the longitudinal dimension of a log. The saw is also arranged to move laterally along the carriage between the uprights to make cuts the lateral dimension of the log.

A mobile machine tool (10), namely a manually-operated machine tool or semi-stationary machine tool, for machining a workpiece (W), wherein the machine tool has a plate-like guide element (30) with a guide surface (32) for guiding the machine tool on the workpiece (W) or the workpiece (W) on the machine tool, wherein the machine tool has a drive unit (11) with a drive motor (13) for driving a tool holder (14) arranged on the drive unit (11), wherein the drive unit (11) is, by means of a bearing arrangement (35), mounted adjustably on the guide element (30) in order to adjust at least two adjustment positions (S0, S1, S2) of the tool holder (14) relative to the guide surface (32), wherein at least one adjustment position (S0, S1, S2) corresponds to a workpiece machining position in which the work tool (15) arranged on the tool holder (14).

A mobile machine tool (10), namely a manually-operated machine tool or semi-stationary machine tool, for machining a workpiece (W), wherein the machine tool has a plate-like guide element (30) with a guide surface (32) for guiding the machine tool on the workpiece (W) or the workpiece (W) on the machine tool, wherein the machine tool has a drive unit (11) with a drive motor (13) for driving a tool holder (14) arranged on the drive unit (11), wherein the drive unit (11) is, by means of a bearing arrangement (35), mounted adjustably on the guide element (30) in order to adjust at least two adjustment positions (S0, S1, S2) of the tool holder (14) relative to the guide surface (32), wherein at least one adjustment position (S0, S1, S2) corresponds to a workpiece machining position in which the work tool (15) arranged on the tool holder (14).

A floor leveling apparatus and method for cutting parallel grooves in a hardened body which is configured to assist in utilizing a grinder to finish surfaces in a planar manner.

A floor leveling apparatus and method for cutting parallel grooves in a hardened body which is configured to assist in utilizing a grinder to finish surfaces in a planar manner.

A miter saw assembly includes a cutting tool configured to perform a cut along a cutting axis. A stop mechanism is linearly translatable in a first direction. A rotary motor includes a selectively rotatable rotor and a motion conversion mechanism configured to transform rotary motion of the rotor to linear motion of the stop mechanism in the first direction. A controller is configured to selectively rotate the rotor to cause linear translation of the stop mechanism toward or away from the cutting axis. A position detection system includes a visual sensor coupled to the stop mechanism and a ruler strip. The ruler strip includes a plurality of spaced apart position indicators configured for detection by the visual sensor in order to determine a position of the stop mechanism relative to the cutting axis of the cutting tool via position correlating perform by the controller.

Blade guards for power tools such as table saws are disclosed. The blade guard may include a guard that pivots up and down to allow a workpiece to move past the guard, a dust collection channel, and a pivot mechanism which maintains the dust collection channel in an operable condition as the guard pivots up or down. The guard may also function as a wood stop and it may include anti-kickback pawls. The blade guard may be part of a dust collection system and may be connected to a vacuum system by a conduit such as a flexible hose.

Blade guards for power tools such as table saws are disclosed. The blade guard may include a guard that pivots up and down to allow a workpiece to move past the guard, a dust collection channel, and a pivot mechanism which maintains the dust collection channel in an operable condition as the guard pivots up or down. The guard may also function as a wood stop and it may include anti-kickback pawls. The blade guard may be part of a dust collection system and may be connected to a vacuum system by a conduit such as a flexible hose.