The loggers joint - is it not the corner bar

Since the time man first realized that useful and objects of different types of wood could be constructed, it has methods, on the other a piece of wood to join. Some properties of this wonderful material quite complicate the joining process.

Wood will expand and contract be moisture content and the amount of moisture to the air around. In high humidity situations is to absorb the wood moisture and expand. When wood is exposed to very dry conditions, it shrinks. This movement caused by humidity can really force adjacent piece apart if not properly registered. Over the years, woodworkers learned that typically glue alone makes no successful joint.

A further step in the evolution of joining wood pieces was the addition of nails or screws. This surely contributed, but another feature of wood caused this kind of attached be joint also error prone. End grain is called when lumber from logs the ends of each piece is cut. This end grain is what you would see when you go through a tree cut and then down, looked around the stump or at the end of the log. This end grain is very porous and has very limited strength.

Driven nails and screws or other fasteners in end-grain lack of holding power. Also tend to because of this porosity on end grain glues used to soak and lose much of their bonding strength. Therefore a common missing where the end grain of a Board, such as a book that long is a member of grain of side wall of the case, sufficient strength, where a solid common glue and nails or screws with something has been applied. By too much weight on such a shelf cause that the common pull slightly apart.

Therefore, the most well-made book called expressed cases editing slots, a dados woodworkers, constructed in the side, which is then inserted each shelf. This makes a shared very satisfactory and appealing. A dovetail joint can be used in more expensive pieces. In this technique the slot in the side panel is actually cut in the shape of a triangle with the tip. The shelf end be into this tapered slots fit edits and a very strong joint is achieved. While these techniques by professional and advanced amateur of woodworkers are widespread, they are labour intensive with hand tools and expensive to build to build machines.

A much simpler technique is used today by many professionals who are price conscious and many amateurs, a quality project with strong and still pleasing joints produce want this technique employs a tool, called a Pocket Hole jig or sometimes a Pocket screw jig. The process is very simple. The jig with a special drill are at an angle by the long grain holes are drilled in one piece and in the long grain of mating piece. The holes are invisible in most cases in the finished piece.

Screws are driven into these holes and grain is avoided because all end a very strong, pleasant and simple common in many cases without using any glue. If you do your business or hobby woodworking well joints would produce with all the tools used this pocket hole jig to investigate. You will amazed not only on the simplicity and speed of construction projects with this technique, but also with the reasonable price of these tools.