ENCYCLOPEDIA OF WOOD

PREPARING LUMBER

Подпись: For surfacing a board face, push blocks help to keep stock flat and your hands safe. Lateral pressure keeps the edge against the fence.PREPARING LUMBER

The first job in a cabinetmaking pro­ject involves preparing your stock. If you own a jointer, a planer and a table saw, you can do the work yourself.

Whether to construct a large cabinet or a miniature jewelry box, lumber is generally prepared in the same way. The procedures you follow depend on how the wood was surfaced before you bought it. For rough boards, you start by smoothing one face on the jointer, then one edge. This will give you adjoin­ing surfaces that are perfectly square to each other. Next, pass the second face through a planer so that the faces are parallel. Now you can rip your boards to width and crosscut them to length.

For S2S lumber, which has already had both faces surfaced, you need only
pass one edge across the jointer, then rip and crosscut. S4S wood, with all four surfaces dressed, can be cut to width and length immediately; only edges that will be glued together need to be jointed.

Although lumber with defects should be avoided, you may find yourself with a few warped boards you do not want to discard. Several simple techniques for salvaging defective stock are shown on pages 54 and 55. A cupped board can be ripped into several narrower pieces, in effect flattening the curve into strips that can be jointed. A crooked or bowed board can be salvaged on the jointer by gradually cutting away the high spots. And a simple jig can be used with the table saw to transform a board with an uneven edge into a square piece.

PREPARING LUMBER

SURFACING STOCK

Jointing a board

Set a cutting depth between Vie and Vs inch. Joint a board face as shown in the photo above. To joint an edge, feed the stock slowly across the cutterhead, making sure that the knives are cutting with the grain (page 29). While feeding the workpiece over the knives, use a hand-over-hand motion to keep downward pressure on the piece just to the outfeed side of the cutterhead, maintaining pressure against the fence. Continue these movements until you finish the cut.

PREPARING LUMBERПодпись: Planing stock Set a cutting depth up to Уъ inch. Stand to one side of the planer and use both hands to feed the stock carefully into the machine, keeping the board edges parallel to the edges of the planer table. Once the machine grips the board and begins pulling it across the cutterhead, support the trailing end to keep it flat on the table (right). As the cut progresses, move to the outfeed side of the planer and support the piece with both hands until it clears the outfeed roller. If you are making several passes to reduce the board's thickness, plane the same amount of wood from both faces. This will minimize warping.
SALVAGING WARPED LUMBER

PREPARING LUMBER

Ripping cupped stock into narrow boards

This technique for salvaging cupped boards involves the band saw, but you can achieve the same result with a table saw or a radial arm saw. If you are using a band saw, install your widest blade and set up a rip fence on the machine’s table. Set the width of cut; the narrower the setting, the flatter the resulting
boards. To make a cut, set the board convex (high) side up on the table and, butting the board against the fence, feed it steadily into the blade (above). Make sure that neither hand is in line with the cutting edge. Finish the cut with a push stick. Remove any remaining high spots on the jointer (page 55).

PREPARING LUMBERJOINTING CROOKED OR BOWED STOCK

PREPARING LUMBER

PREPARING LUMBER

SHOPTIP

5traightening out an uneven edge

Подпись:Even out the edges of a crooked board on the table saw with a shop-made jig. Cut a piece of 3A-inch ply­wood with perfectly parallel edges. Place the squarely on top of the plywood, with the uneven part overhanging one edge. Butt stop blocks against the trailing end and edge of the board as shown, then screw the blocks to the plywood. Attach toggle clamps to the blocks and press the clamps down to secure the board to the jig. Set the width of cut equal to the width of the plywood piece and slide the jig acroes the saw table, cutting the edge of the board straight.

PREPARING LUMBER

Добавить комментарий

ENCYCLOPEDIA OF WOOD

ZIRICOTE

(H) Botanical Name: Cordia dodecandra A stunning, dark wood, ziricote is easy to work and can be broughtto a very smooth finish. Though difficult 5o dry, once this is achieved …

ZEBRAWOOD

(И) Botanical Name: Microberlinia brazzaviWeneie Distinctive in appearance, zebrawood comes from two species of large trees found mainly in Cameroon and Gabon, West Africa. While it is usually seen as …

WILLOW

(H) Botanical Name: Salix nigra While its European cousin is used most notably in cricket bats, black willow is most frequently used in North America by school woodworking shops; it …

Как с нами связаться:

Украина:
г.Александрия
тел./факс +38 05235  77193 Бухгалтерия

+38 050 457 13 30 — Рашид - продажи новинок
e-mail: msd@msd.com.ua
Схема проезда к производственному офису:
Схема проезда к МСД

Партнеры МСД

Контакты для заказов оборудования:

Внимание! На этом сайте большинство материалов - техническая литература в помощь предпринимателю. Так же большинство производственного оборудования сегодня не актуально. Уточнить можно по почте: Эл. почта: msd@msd.com.ua

+38 050 512 1194 Александр
- телефон для консультаций и заказов спец.оборудования, дробилок, уловителей, дражираторов, гереторных насосов и инженерных решений.