Essential Joinery. Marc Spagnuolo

Essential Joinery - Marc Spagnuolo


Скачать книгу
JOINERY

      Butt Joints | REINFORCING FLAT MITER JOINTS

      6

      7

      8

      6. Apply glue to the inside of

       the key slot as well as to the

       key itself.

      7. Press the key all the way into

       the slot so it bottoms out.

      8. Using a triangle block as a

       caul on the inside of the corner

       joint, apply clamping pressure to

       keep the key in place. Note that

       you may want to dog-ear the

       corner of the key to help prevent

       crushing and splitting its fragile

       corner. Apply a second clamp to

       sandwich the joint together.

      42

      ESSENTIAL JOINERY

      REINFORCING FLAT MITER JOINTS | Butt Joints

      9. Once the glue is dry, use a

       flush trim saw to cut away the

       excess key stock.

      10. Smooth the surface with a

       sanding block or a handplane.

      11. A quick coat of finish

       highlights the decorative effect of

       the contrasting wood tones. For a

       less visible feature, use the same

       species of wood as the frame.

      9

      10

      11

      43

      ESSENTIAL JOINERY

      Butt Joints | REINFORCING FLAT MITER JOINTS

      1A

      1B

      MITER REINFORCEMENT Using SPLINES

      TOOLS

      Tablesaw, tenoning jig,

      or router table with slot bit

      and miter gauge

      Push pad

      Adjustable square

      Sandpaper

      Clamps

      Flush trim saw

      1A. Tablesaw using tall fence:

       With a piece of sheet good for

       support, a mitered workpiece

       can be clamped at 45° and

       pushed over the blade to create

       a spline slot.

      1B. Tablesaw with tenoning jig:

       With the back fence at 45°, the

       tenoning jig makes quick work

       of cutting a spline slot on a

       mitered workpiece.

      While keys are cut into the frame after the glue-up, splines are cut in

       the mitered pieces before the glue-up. The spline is a small strip of

       wood that helps keep the joints aligned and lends additional strength.

       There are three primary ways to cut them.

      44

      ESSENTIAL JOINERY

      REINFORCING FLAT MITER JOINTS | Butt Joints

      1C. Router table with slot bit:

       A bearing-guided slot-cutting

       bit makes spline slots quickly and

       efficiently. Be sure to use a miter

       gauge and fence to help support

       the work.

      2. The spline stock is milled to

       thickness in the same way as in

       the mitered key section on page 39. The spline strip is then cross- cut into small individual splines. The grain of the spline will run perpendicular to the joint.

      3. The length of the spline isn’t

       critical since it can be trimmed

       after gluing, but the width has to

       be perfect, otherwise there can

       be gaps.

      1C

      2

      3

      45

      ESSENTIAL JOINERY

      Butt Joints | REINFORCING FLAT MITER JOINTS

      4

      5

      6

      4. To make slight adjustments

       to the spline, use a piece of

       sandpaper on the workbench and

       rub the spline across the surface

       until the fit is perfect.

      5. Assembly strategies shown

       on pages 31 and 32 apply here. The use of angled clamping blocks is shown.

      6. The entire joint (miters and

       splines) are glued together all

       at once.

      46

      ESSENTIAL JOINERY

      REINFORCING FLAT MITER JOINTS | Butt Joints

      7

      8

      9

      10

      7. After the glue is dry, use a

       flush trim saw to trim away the

       excess spline stock.

      8. Sand or plane the surface

       smooth on the outside corner.

      9. Use a sharp chisel to do

       the final cleanup on the inside

       corner.

      10. In this case, a contrasting

       species for the spline lends a

       decorative effect. If you want

       the spline to be less noticeable,

       choose a spline of the same

       species as the frame.

      47

      ESSENTIAL JOINERY

      Butt Joints | REINFORCING FLAT MITER JOINTS


Скачать книгу