Basic Equipments

The fretsaw is a general workshop machine. It is used to cut and shape light materials such as perspex, MDF and plywood. Fretsaws are made by different companies and they range in price depending on the quality of machine. The most expensive and probably the best are manufactured by the German company ‘Hegner’. These can be used to cut very detailed shapes and they are supplied with different types of blade according to the material that is to be cut. Cheaper fretsaws are still very useful and they can cut a range of materials. The materials cut more easily if they are quite thin, for instance, any material thicker than 10mm would be difficult to shape. The general rule is that the thicker the material, the slower the machine operator pushes the work against the blade.

There are two types of machine drill, the bench drill and the pillar drill. The bench drill is used for drilling holes through materials including a range of woods, plastics and metals. It is normally bolted to a bench so that it cannot be pushed over and that larger pieces of material can be drilled safely. The larger version of the machine drill is called the pillar drill. This has a long column which stands on the floor. This can do exactly the same work as the bench drill but because of its larger size it is capable of being used to drill larger pieces of materials and produce larger holes.
BENCH DRILL		PILLAR DRILL
SAFETY 1. Always use the guard. 2. Wear goggles when drilling materials. 3. Clamp the materials down or use a machine vice. 4. Never hold materials by hand while drilling. 5. Always allow the ‘chippings’ to clear the drill by drilling a small amount at a time. 6. Follow all teacher instructions carefully.
	The bench drill is a smaller version of the pillar drill. This type of machine drill is used for drilling light weight pieces of material. The example below shows the machine operator drilling a thin piece of perspex. The perspex is held safely in a hand vice which is held in the hand. NEVER hold work directly in the hand when drilling. The on and off buttons are found on the left hand side of the machine and the handle controlling the movement of the drill on the right. Most bench drills will also have a foot switch for turning off the drill. Ratchet Brace                                               Hand Drill G CRAMPS    G Cramp is an essential tool in the workshop and it comes in a range of sizes and is generally used for clamping work securely to a surface/workbench top. It can also be used to hold parts together whilst glue is drying. Sash Clamp Sash clamps are used to clamp work together when it is glued. They vary in size and are normally used in pairs. The lengths are normally from 460mm to 1370mm. The bar is made from cold drawn mild steel and the head and slides made from malleable iron. After clamping a frame, the 'squareness' of the frame should be tested and adjustments made to the position of the clamps if necessary. The internal angles of the corners should be 90 degrees. The 90 degree angle is checked with a try square or a rule. A long ruler is used to check large frames and a try square is used on smaller ones. When using a ruler the diagonal distances are measured. If both measurements are the same, the angles at each corner are correct. If the two measurements differ, the clamps need adjusting until the measurements are the same. EXAMPLES OF PLANES     WOOD BLOCK PLANE: Although this is a very old design they are still used today to remove a large amount of wood. This is due to the fact that they are lighter than steel planes and therefore they can be used comfortably for longer periods.     JACK PLANE: This is the steel equivalent of the wooden block plane. It has a steel body and because it is heavier than the wood block plane it is easier to hold down on the surface of the wood being planed. It is used to plane longer pieces of wood.     SMALL BLOCK PLANE: This is a small version of a wood block plane and it is used for light work such as producing 'chamfers'. It is normally held and used in one hand.       SMOOTHING PLANE: A shorter version of the steel jack plane. It is used for general work such as smoothing short pieces of wood. It is lighter and smaller than the jack plane         BULLNOSE PLANE: This is used to plain right into corners. The blade can be seen to go almost up to the end of the plane's body and consequently very little material is missed in a corner.       REBATE PLANE: Used for producing shoulders or rebates. A good example is a base to a jewellery box which is rebated into the sides. (See Lapped Joint)     COMBINATION PLANE: Used in a similar way to a rebate plane. It can be used for creating a shoulder/rebate on the edge of a piece of wood. This plane has an advantage over the rebate plane as it is adjustable for different widths. (See Lapped Joint)     MACHINE PLANE: This is favoured by DIY enthusiasts as it saves time. A blade revolves at high speed and as the machine plane is pushed across the surface of the wood - it is planed. A big disadvantage of these planes is that they are potentially very dangerous if misused. Also, sometimes the finish to the surface is not as smooth or precise as a hand held plane being carefully used.