The Technique of FURNITURE MAKING

Trimming edges

Cut edges can be trimmed with a heavy jack - plane, using short, quick strokes and not attempting to follow through; or with steel cabinet-scrapers, or fine-cut saw-files. If the edges require polishing a dead smooth file, or 400 grit wet and dry silicon carbide paper, will ease out the scratches, and a little fine cutting - down paste or metal polish {Brasso, etc.), followed up with a wipe of thin oil, will restore the lustre. Scratches on the face of the sheet can also be eased out with abrasive paste (p.86), always provided they do not penetrate to the cover paper, and matt black laminates are usually enhanced by rubbing over with finest No. 0000 steel wool, but it must be carefully done. Spilt glue, paint, etc. can be lifted with a razor-blade as in cleaning glass, and oil, greasy thumb-prints, especially on matt black veneers, eradicated by wiping over with french chalk.

Laying techniques

Composite assemblies 1/8 in (3 mm) and thicker are self-supporting; but the standard 1/16 in (1.5 mm) veneer requires bonding, either to a rigid framework, or to plywood or chipboard sheeting not less than 3/4 in (19 mm) thick. Generally speaking, solid wood groundworks/ substrates are quite unsuitable, as the laminated veneer is virtually inert and cannot move in sympathy. Additionally, the reverse side of the groundwork must also be veneered to counteract the pull as in wood veneering, unless the support is very firmly fixed. A special backing quality laminate composed of kraft papers is available, although.024 in (0.6 mm) wood veneers can also be used. Care should be taken to choose groundworks whose faces are smooth, fine grained and without strong figure such as Columbian pine, etc., otherwise the raised grain will telegraph through to the surface in time. Cross-members in made-up frameworks should not be glued together or they will also eventually shadow through.

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The Technique of FURNITURE MAKING

ESTIMATING THE COST OF MAN-HOURS IN HANDWORK

Where no previous records are available the proprietor must assess his own capabilities and those of his employees. Common joinery items are usually in softwood of fairly large dimensions, with …

Costs of man-hours

The total cost of man-hours at the rates paid, plus overtime rates where applicable, plus health insurance, pensions, paid holidays, etc. have to be considered. Here again these may be …

Appendix: Costing and estimating

Costing is the pricing of completed work taking into account not only all the direct expenses— materials, wages and insurances, fuel and power, machining costs, workshop expenses, etc.—but also a …

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