Circular Table Saws

As a rough approximation it is usual to take one-third of the diameter of a circular saw as its effective cut, therefore a 15 in (381 mm) saw giving a cut of about 5 in (127 mm) would be about the minimum for general work. However, many large concerns do not use timber thicker than 11 2 in (38 mm) building up for larger dimensions, and this greatly simplifies their stocks, while large-diameter saws are no 99 12 in (304 mm) sliding-table panel-saw (dimension saw) 100 Startrite 9 in (228 mm) tilt...

Stains In Wood

Stains can be caused by harmless fungi as distinct from wood-rotting fungi, soil conditions, frost factors, etc., chemical contamination, and natural oxidization or weathering. Positive identification of any particular type of stain can be difficult, but as a rule fungal and mineral stains are of variable intensity, fading slightly at the edges and following the grain. Stains with a hard edge which do not follow the grain are usually chemical in origin, while overall discoloration is probably...

Cast and moulded structures Thermosetting plastics

Special casting or compression moulding resins (PF, UF, MF and epoxy resins, etc.) are used. In the most simple technique a cold cure resin mix (resin syrup and catalyst) is extended with appropriate fillers and colorants and cast in metal, silicone or hot melt rubber or plaster moulds without heat. In a more sophisticated technique the resinous solution is neutralized with a suitable organic acid, dehydrated under vacuum, and poured into lead moulds which are then oven treated. A third...

Manufacture Of Wood Veneers

Before the introduction of power-driven circular saws all veneers were sawn by hand, usually V8 in (3 mm) and over in thickness, with deep saw kerfing which had to be planed off before laying or the ribbing would ultimately show through the polish. At the turn of the century specially large circular saws up to 18 feet (5.48 m) in diameter with very fine saw teeth and little set were introduced which could cut veneers from V32 in (0.8 mm) to Vi6 in (1.5 mm) in thickness, or about 12 sheets to...

Diseases And Pests

Wood which is deeply buried in the ground or completely submerged in water does not decay, as witness the highly prized black bog oak which has been buried for centuries under layers of wet peat, and the use of timber baulks for underwater piles and breakwaters. However, where there is free oxygen, living fungi will attack the wood, provided there is moisture present and although most of these fungi are relatively harmless, causing little more than local staining, two main types of rot actively...

Properties Of Common Woods

The following list gives descriptions of some of the more widely known woods suitable for furniture-making. In each case, colour, texture, figure, working properties and behaviour can only be an approximation or general average, for individual trees within each species may differ very considerably. There will be marked differences between trees of the same species and accorded the same commercial gradings grown some 2000 miles apart, but there can also be an appreciable difference between trees...

Pullover Cross Cut Saws Radial Arm Saws

A heavy duty radial or swing saw mounted on a long wooden table is a regular item of equipment in most joinery workshops for the rapid crosscutting of squared up boards and timbers. It is less common in cabinet-making shops simply because waney edge boards are more commonly used. Many shops do have a lighter version, the radial arm saw, which has been particularly developed for the home craftsman and has a versatility that enables many processes from ripping to drilling to be accomplished on...

Carcass assembly

Carcas Construction

Final assembly of the various component parts is the culmination of many hours of patient work and should never be hurried. A preliminary assembly in the dry state can be made but only to establish the direction of entry and the exactness of the fit. Dowelled components can be tried with spare dowel-pegs sanded slack (tight dowels should never be used as the suction in a tight hole can hold them immovable), and there can be no objection to fully seating tenons in order to check the shoulders,...

Planes

One of the most useful of all planes is the 22 in (558 mm) try-plane 'jointer No. 07 with 23 8 in (60 mm) cutter. Shorter planes in this category are known as 'fore' for general levelling, and longer planes 'jointers' for shooting square edges, etc., but the middle size will do everything necessary. Jack-planes can either be 14 in (355 mm) or 15 in (380 mm) long with 2 in (50 mm) or 23 8 in (60 mm) cutter (Nos. 05 or 05V2). The name itself is probably a corruption of 'jackass' or 'Jack of all...

Furniture Making

Since its first publication in 1970 The Technique of Furniture Making has established itself as the bible for all woodworkers. However, in nearly twenty years there have been considerable changes in the craft, and so this book has been revised thoroughly in order for it to continue to be as useful and relevant to today's furniture makers. The revision has been carried out by Alan Peters, one of Britain's leading furniture makers, whose own training has led him to have a ready sympathy and...

Jng

Table without flaps, 385 2 the sectional elevation and 385 3 an isometric projection of the overall appearance. Figure 385 4 is the usual table with end flaps supported by swing knuckle-jointed brackets as in Pembroke tables, etc., and 385 5 an under plan showing the flap in the raised position. Constructional details are given in 386 with 386 1 the carcass framing, 386 2 leg details from which it will be seen that the side rail is bridled over the upright or standard, with the outer side of...

Info

And should override the back by about 1 4 in 6 mm to which they are open slot screwed. The grain of plywood bottoms can run either way, but custom and usage usually dictates from side to side. Wide drawers may need thicker plywood, but it is more usual to support the bottom with a centre muntin about 2 in 50 mm wide by 5 8 in 16 mm thick, lap dovetailed at the front and rabbeted and screwed to the back 238 16 . The drawer front is first cut roughly to size with the long edges parallel, and cut...

Dovetailing accessories

Arcoy Dovetailer

Where short runs do not warrant the use of a dovetailing machine, accessories can be obtained for most types of spindle moulding shaping machine and router including portable routers , incorporating suitable jigs or finger plates into which the single cutter is fed. Particulars of these can be obtained from the manufacturers concerned. For the handworker not completely wedded to hand dovetailing, and lacking sufficient practice to cut dovetails as speedily as the hardened professional, a...

Inlay Lines Bandings

It is a little sad that inlaid lines and bandings are no longer used in modern furniture, for they add great richness and a touch of welcome colour. Figure 302 1 shows various traditional examples, and 302 2-5 the method of assembly in which composite blocks are built up of layers of contrasting woods and veneers and then sliced as in 302 3, with a special planer or swage-set circular saw projecting only sufficiently above the saw-table to cut the thickness. Reproduction-work still makes use of...

Saw Kerfing

This traditional method is not now used to any great extent in production furniture-making, but it still has an important role in smaller workshops, as it is often a more economic method in one-off work than laminating. In practice a series of saw cuts are run down to within about 1 8 in 3 mm of the outer face 319 1 according to the wood species, and the closer the cuts are the easier the wood will bend, with hard oak requiring a spacing of 1 4 in 6 mm or less. There is a tendency for the bend...