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Woodwork Short Notes

DEFORESTATION: -> EFFECTS:


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Savvyisgreat — 20/06/16
DEFORESTATION: -> EFFECTS: Reduces oxygen in the atmosphere, Increases the likelihood of flooding in deforested areas Increases global warming Increases soil erosion in deforested areas. -> SOLUTIONS: Use native woods over tropical woods Use woods from suitable forests (FSC labelled) Use manufactured boards over tropical woods Use veneered manufactured boards Plant trees within local communities
Savvyisgreat — 20/06/16
ADHESIVES - TYPES AND QUALITIES OF ADHESIVES -> POLYVINYL ACETATE (PVA GLUE): Water soluble Ready to use Sets in 4 - 12 hours -> SCOTCH GLUE Water soluble Used in veneering or furniture restoration Not very strong -> CAESIN GLUE Strong Easy to mix Used in woodwork projects, toys or models -> EPOXY RESIN Expensive Quick setting and strong Bonds metals, glass, wood, etc. -> SUPER GLUE Expensive with small packaging Sets in seconds Used in small bonding jobs
Savvyisgreat — 20/06/16
CARVING METHODS OF CARVING: Chip carving, Relief Carving, and Carving in the round (3D carving) HOW TO TRANSFER A DESIGN ONTO WOOD USING CARBON PAPER: 1. Collect the wood, the design, carbon paper, sellotape and a pencil. 2. Sellotape the carbon paper onto the wood. 3. Sellotape the design over the carbon paper. 4. Trace over the design with a pencil. 5. Make sure all lines have been traced before fully removing the carbon paper and the design. 6. The design should be present. HOW TO CARVE IN THE ROUND - MARKING OUT AND CARVING. -> MARKING OUT 1. Draw the elevation(s) and plan(s) of the design onto paper. 2. Transfer the images onto the wood using carbon paper. -> CARVING 1. Cut the rough shape of the design using a coping saw or band saw. 2. Using gouges and shaping tools develop the overall final shape of the piece. 3. On the rough, draw and carve the finer details using chisels and other tools. 4. Sand and finish. WOODS SUITABLE FOR CARVING: Aspen Basswood Butternut -> REASONS FOR CHOICE OF WOOD Cost, Appearance, Durability, Work ability, Finishes well, Renewable, Environmentally friendly.
Savvyisgreat — 20/06/16
CONVERSION THROUGH AND THROUGH SAWING -> ADVANTAGES Low cost Little waste Fast method -> DISADVANTAGES Boards are likely to cup No particular grain pattern Less durable as there is a lot of sapwood present QUARTER SAWING / RADICAL SAWING -> Advantages Attractive grain pattern Boards are not likely to shrink Boards wear evenly (good for flooring) -> Disadvantages Expensive, High labor cost Lots of waste is produced Boards are not as wide as in plain sawing TANGENTIAL SAWING -> ADVANTAGES Flame like grain pattern Boards season quickly Boards can take nails without splitting because of the grain pattern -> DISADVANTAGES Boards tend to shrink and cup Timber is prone to warping and cupping Expensive as the log has to be turned 90° for each cut
davidbrown1210 — 20/06/16
do you think manufactured boards will come up in question 3? what design processes do you think will come up on question 2
Savvyisgreat — 20/06/16
(Its a bit late, >.> sorry lol) Manufactured boards didn't come up this year, but they probably will next year. TYPES OF MANUFACTURED BOARDS: Block board Plywood Oriented Strand Board (OSB) Chipboard Medium Density Fiberboard (MDF) Hardboard HOW CHIPBOARD IS MANUFACTURED: 1. The wood is processed into particles 2. The particles are mixed with adhesive 3. The particles are spread out and pressed with heat presses. 4. The wood is seasoned 5. The boards are cuts and sanded. ADVANTAGES MANUFACTURED BOARDS HAVE OVER REGULAR BOARDS: Less likely to cup Higher durability Cheap in large quantities Environmentally friendly Can be veneered to resemble hardwoods WAYS MANUFACTURED BOARDS HELP THE ENVIRONMENT: Can be used instead of tropical woods Can be veneered to resemble tropical woods Are more durable and long lasting then solid boards.
mleahy — 13/01/17
Hi Savvyisgreat, your notes look good. Just wondering if you have these shortened notes for the full woodwork course? Thanks.
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