A system and method for increasing a crush strength of a panel. The system having a panel being made from side-grain wood, a bore that extends partly or completely through the panel, and a plug made from end-grain wood. Because end-grain wood has a significantly higher crush strength per square inch than side-grain wood, a topical crush strength of the panel can be increased through the use of the plug. The plug can further be provided with a hollow portion to be used with a thread stepped dowel comprising of a base section, at least one middle section, and a tip section, with each section being progressively smaller in circumference than the last. The at least one middle section of the threaded stepped dowel further comprises thread spiraling around the outer surface of the at least one middle section.

Techniques are disclosed for remotely switching screw color or screw type feeding into a door assembly machine with an auto-hinge applicator. An apparatus having a turntable is supported on bearings and a framework. Each side of the turntable includes a screw hopper accessible via a rotary index. The screw hoppers receive a user input to make a screw selection. Upon receiving a selection, one of the hoppers indexes into position, allowing the correct screw to feed to the hinge applicator. Screw feed-hoses from screwdrivers on the hinge applicator are arranged to connect to a manifold below the screw hoppers. Screws drop from the hoppers into a manifold, at which point the screws are blown with compressed air through the feed-hoses to the screwdrivers on the hinge applicator. Screws can be reloaded into the screw hoppers when rotated in alignment with the hinge side of the door assembly machine.

Techniques are disclosed for remotely switching screw color or screw type feeding into a door assembly machine with an auto-hinge applicator. An apparatus having a turntable is supported on bearings and a framework. Each side of the turntable includes a screw hopper accessible via a rotary index. The screw hoppers receive a user input to make a screw selection. Upon receiving a selection, one of the hoppers indexes into position, allowing the correct screw to feed to the hinge applicator. Screw feed-hoses from screwdrivers on the hinge applicator are arranged to connect to a manifold below the screw hoppers. Screws drop from the hoppers into a manifold, at which point the screws are blown with compressed air through the feed-hoses to the screwdrivers on the hinge applicator. Screws can be reloaded into the screw hoppers when rotated in alignment with the hinge side of the door assembly machine.

A system and method for increasing a crush strength of a panel. The system having a panel being made from side-grain wood, a bore that extends partly or completely through the panel, and a plug made from end-grain wood. Because end-grain wood has a significantly higher crush strength per square inch than side-grain wood, a topical crush strength of the panel can be increased through the use of the plug. The plug can further be provided with a hollow portion to be used with a thread stepped dowel comprising of a base section, at least one middle section, and a tip section, with each section being progressively smaller in circumference than the last. The at least one middle section of the threaded stepped dowel further comprises thread spiraling around the outer surface of the at least one middle section.

Techniques are disclosed for remotely switching screw color or screw type feeding into a door assembly machine with an auto-hinge applicator. An apparatus having a turntable is supported on bearings and a framework. Each side of the turntable includes a screw hopper accessible via a rotary index. The screw hoppers receive a user input to make a screw selection. Upon receiving a selection, one of the hoppers indexes into position, allowing the correct screw to feed to the hinge applicator. Screw feed-hoses from screwdrivers on the hinge applicator are arranged to connect to a manifold below the screw hoppers. Screws drop from the hoppers into a manifold, at which point the screws are blown with compressed air through the feed-hoses to the screwdrivers on the hinge applicator. Screws can be reloaded into the screw hoppers when rotated in alignment with the hinge side of the door assembly machine.

Techniques are disclosed for remotely switching screw color or screw type feeding into a door assembly machine with an auto-hinge applicator. An apparatus having a turntable is supported on bearings and a framework. Each side of the turntable includes a screw hopper accessible via a rotary index. The screw hoppers receive a user input to make a screw selection. Upon receiving a selection, one of the hoppers indexes into position, allowing the correct screw to feed to the hinge applicator. Screw feed-hoses from screwdrivers on the hinge applicator are arranged to connect to a manifold below the screw hoppers. Screws drop from the hoppers into a manifold, at which point the screws are blown with compressed air through the feed-hoses to the screwdrivers on the hinge applicator. Screws can be reloaded into the screw hoppers when rotated in alignment with the hinge side of the door assembly machine.