A dado jig that may be adapted for use with any thickness of wood stock to allow quick and accurate cutting of dadoes to fit the thickness of the stock piece exactly is provided. The present disclosure further provides a method of use for a dado jig to cut both open and blind dadoes with stock of varying thicknesses without the need to measure that thickness.

A dado jig that may be adapted for use with any thickness of wood stock to allow quick and accurate cutting of dadoes to fit the thickness of the stock piece exactly is provided. The present disclosure further provides a method of use for a dado jig to cut both open and blind dadoes with stock of varying thicknesses without the need to measure that thickness.

A fastening assembly having a sliding column and a sliding groove. The sliding column includes a fixing portion provided on a surface of a first installing member facing a second installing member, and an extending portion connected to the fixing portion. The sliding groove is formed on a surface of the second installing member facing the first installing member, and includes an avoiding space for inserting the extending portion into the sliding groove. A fastening space is provided for clamping the extending portion to the sliding groove. A bottom surface of the fastening space is formed with a locking hole. A limiting space is provided for limiting the extending portion from extending from the avoiding space to the fastening space.

A fastening assembly having a sliding column and a sliding groove. The sliding column includes a fixing portion provided on a surface of a first installing member facing a second installing member, and an extending portion connected to the fixing portion. The sliding groove is formed on a surface of the second installing member facing the first installing member, and includes an avoiding space for inserting the extending portion into the sliding groove. A fastening space is provided for clamping the extending portion to the sliding groove. A bottom surface of the fastening space is formed with a locking hole. A limiting space is provided for limiting the extending portion from extending from the avoiding space to the fastening space.

A rotary feeder mechanism is provided for a stringer notcher wherein the feeder includes opposing pairs of pusher arms with one pusher arm of each pair being located on opposing sides of a magazine holding a vertically stacked supply of stringers to uniformly move the lowermost stringer onto a work table. The opposing pusher arms are eccentrically mounted on opposite sides of a rotary drive shaft. A control link is connected to each pusher arm to maintain the orientation of the distal ends of the pusher arms in a selected orientation during rotational movement. As one pusher arm moves a stringer onto the work table, the next vertically stacked stringer rests on the top surface of the stringer to be eased onto the bottom of the magazine as the pusher arm retracts below the level of the work table for the opposing pusher arm to then engage the next stringer.

A rotary feeder mechanism is provided for a stringer notcher wherein the feeder includes opposing pairs of pusher arms with one pusher arm of each pair being located on opposing sides of a magazine holding a vertically stacked supply of stringers to uniformly move the lowermost stringer onto a work table. The opposing pusher arms are eccentrically mounted on opposite sides of a rotary drive shaft. A control link is connected to each pusher arm to maintain the orientation of the distal ends of the pusher arms in a selected orientation during rotational movement. As one pusher arm moves a stringer onto the work table, the next vertically stacked stringer rests on the top surface of the stringer to be eased onto the bottom of the magazine as the pusher arm retracts below the level of the work table for the opposing pusher arm to then engage the next stringer.

A mortise and tenon joint tooling guide includes a base seat, two templates, an adjusting plate and a clamping structure. The base seat has a platform and an opening through the platform. Each of the templates can be arranged on the platform at intervals in a movable form. Each of the templates is formed with a guiding edge on one side. The guiding edges face each other and are used to guide the machining tool going through the opening to process a workpiece to form a mortise or tenon. The adjusting plate is configured on the base seat, capable of moving back and forth, and is used to abut against the workpiece, and to correct the distance between the template and the surface. The clamping structure is configured on the base seat, and is used to clamp the workpiece, so as to relatively position the platform and the workpiece.

A mortise and tenon joint tooling guide includes a base seat, two templates, an adjusting plate and a clamping structure. The base seat has a platform and an opening through the platform. Each of the templates can be arranged on the platform at intervals in a movable form. Each of the templates is formed with a guiding edge on one side. The guiding edges face each other and are used to guide the machining tool going through the opening to process a workpiece to form a mortise or tenon. The adjusting plate is configured on the base seat, capable of moving back and forth, and is used to abut against the workpiece, and to correct the distance between the template and the surface. The clamping structure is configured on the base seat, and is used to clamp the workpiece, so as to relatively position the platform and the workpiece.

Tapered, stepped, or non-tapered router guide templates, optionally combined template holder system, and optional tapered or non-tapered guide bearing on a readily-locatable and lockable shaft, each template comprising: a base portion, a top portion, at least one of an exterior surface interconnecting the base portion and the top portion along an outer periphery of the template and an interior surface interconnecting the base portion and the top portion along an inner periphery of the template, wherein optionally one of the exterior surface and the interior surface may be continuously tapered between the base portion and the top portion, or stepped, and wherein the base portion is adapted for removable and adjustable interconnection with the template holder system.

Tapered, stepped, or non-tapered router guide templates, optionally combined template holder system, and optional tapered or non-tapered guide bearing on a readily-locatable and lockable shaft, each template comprising: a base portion, a top portion, at least one of an exterior surface interconnecting the base portion and the top portion along an outer periphery of the template and an interior surface interconnecting the base portion and the top portion along an inner periphery of the template, wherein optionally one of the exterior surface and the interior surface may be continuously tapered between the base portion and the top portion, or stepped, and wherein the base portion is adapted for removable and adjustable interconnection with the template holder system.