Monday, 25 May 2009

Making Strong Wood Joints

First Step: Making Corner Joints
On almost any woodworking job, you occasionally need to make a strong corner joint. But there are many types of corner joints. Which type is best for the job you are undertaking?
The simple butt joint is most commonly used (Fig. 1). This joint is formed by nailing or screwing the end of one piece of wood to the end of the other. While this is simple, fast and effective, the butt joint cannot be used on many types of end joints.


A simple butt joint leaves the heads of the screws or nails exposed. Of course, the heads can be countersunk and covered with water putty or wood filler if desired.
The dowel joint is basically the same as the butt joint except dowels are used to hold the two pieces of wood together instead of screws and nails (Fig. 2).












You can make the dowel joint by drilling holes completely through one piece of wood and into the other. Dowels are driven into these holes, completely through one piece of wood and deeply into the other. Then glue the dowels firmly into position to provide strength and prevent slippage.
Construct blind dowel joints by drilling the holes only partway into each piece of wood. Then drive the dowels into these holes and glue them into position. The dowels are not visible.
While dowel joints have the advantage of being inconspicuous, they do not provide the structural strength of a simple butt joint.
The end lap joint is made by sawing halfway through each piece of wood and then knocking out or sawing away half of this area (Fig. 3).


Now you can put the two pieces of wood together with screws, nails, corrugated nails, etc.
The end lap joint provides a great deal of strength, but the heads of the nails, screws or corrugated nails are exposed.
The through mortise and tenon joint is easy to make with a power saw and a dado head (Fig. 4). A through mortise and tenon joint is suitable for various woodworking jobs.



To form this joint, saw a slot into one piece of wood. The end of the other piece of wood is then notched out to fit the slot in the first piece (Fig. 4).
Insert the notched piece of wood into the slotted piece of wood and glue, nail or screw the piece into position.
When making a through mortise and tenon joint, be sure to measure the areas to be notched and slotted before making any cuts.
You can make an open mortise and tenon joint by cutting the slot or mortise only partway into one piece of wood. Then create a notched-out area on the other piece that fits into the slotted area in the first piece of wood (Fig. 5).

Close Up To Woodwork World

Wood, is being used ase a useful material for human beings, helping them making life easier especially inventing new tools to be used in preparing their food, guns against wild animals, and many other puroses for thousands of years.

The most important thing is how to make any piece of wood useful??
The only answer is Wood Turning.

Wood turning is a form of woodworking that is used to create wooden objects on a lathe. Woodturning differs from most other forms of woodworking in that the wood is moving while a (relatively) stationary tool is used to cut and shape it. Many intricate shapes and designs can be made by turning wood.

Recently, a sudden expansion happened to this industry because of the new technologies invented for turning the wood into the desired shape, in a very accurate finishing and less time needed for doing the operation.

CNC Router and CNC machines have changed the way that many woodworkers approach their projects. Tasks that were once considered to be too labor intensive to be profitable can now be done quickly and efficiently, allowing for mass production of intricately carved and machined pieces. Woodworkers can now choose from a wide variety of CNC machines to use in their shops. CNC machines are programmed by special software to produce precise and accurate patterns, even over a run of a number of identical pieces. Additionally, because CNC machines and tools allow users to program any pattern or image directly from their computer they have increased the creative possibilities for all woodworkers.

The benefits of a CNC router table

One of the most common types of machines is a CNC router table. These router tables often simply called CNC router, offer the ability to carve intricate designs either two dimensionally or three dimensionally. They can be distinguished in 3 axis or 5 axis machines depending on the mobility of the router head.

CNC Router machines operate by having a computer send motion instructions to a router which is automated to operate in several axes. By giving the machine precise step by step instructions, users can quickly reproduce almost any image or pattern. This flexibility gives users the opportunity to create their own crafts, furniture, and hangings with images they create or with free images. One great thing about a router is the ability to work in different materials. By simply changing your CNC router bit, you can work with wood, aluminum, or plastic. This the right router bit determines the use of the cnc machine.