Making A Scratch Stock

To shape the edges of both workpieces, make a scratch stock from hardwood or plywood, and prepare a pair of matched cutters from steel sheet. File the exact radius curve on the convex cutter, but make the concave cutter very slightly smaller.

1 Cutting the rabbet

Clamp the table top face-side up on the bench, and cut the joint rabbet down to the marked lines, using a rabbet plane.

How Bend Wood Concave BowlRabbet JointHalving Joint

1 Cutting the rabbet

Clamp the table top face-side up on the bench, and cut the joint rabbet down to the marked lines, using a rabbet plane.

Shaping the convex moulding

Shape the moulding roughly with a plane before finishing with the appropriate cutter clamped in the scratch stock. A sharp cutter should leave a perfectly smooth surface - if necessary, smooth the curve with abrasive paper wrapped round a shaped block.

4 Shaping the concave moulding

Using a moulding plane, remove the waste almost to the marked radius, then finish shaping with the scratch stock. Check both halves of the moulding for fit, and reduce any high points with abrasive paper.

5 Marking the hinge recesses

With a cutting gauge set to the rule-joint radius, scribe the centre line for each hinge knuckle on the underside of the top, about 150mm (6in) in from the side edges. Lay the leaf and top together, face-down on the bench. Align each hinge with its line and score round it.

Chisel the hinge recesses to set the flaps flush with the surfaces, cutting a slightly deeper recess for each knuckle. Drill a pilot hole for the one screw nearest to the knuckle in each flap, and temporarily screw the hinges in place. Check the movement of the leaf and, if all is well (see page 104), insert the remaining screws.

Moulding Plane Making

4 Shaping the concave moulding

Using a moulding plane, remove the waste almost to the marked radius, then finish shaping with the scratch stock. Check both halves of the moulding for fit, and reduce any high points with abrasive paper.

Rule Joint And HingesRule Joint Hinges

3 Preparing the leaf edge

Clamp the leaf face-side down and cut a rabbet as described above, then plane down the waste as close as possible to the marke'd radius.

3 Preparing the leaf edge

Clamp the leaf face-side down and cut a rabbet as described above, then plane down the waste as close as possible to the marke'd radius.

CORRECTING A MISALIGNED RULE JOINT

Rule Joint

Binding near the rabbet

If the joint binds just before the leaf is level, remove the hinges and pare the hinge recesses until they are slightly deeper.

Rule Joint Hinge

Binding towards the bottom

If the rule joint binds when the leaf is nearly vertical, pack out the hinge flaps with thin card or veneer.

Binding towards the bottom

If the rule joint binds when the leaf is nearly vertical, pack out the hinge flaps with thin card or veneer.

Catching on the lower edge

If the edge of the leaf catches on the underside of the fixed top, the hinges are set too far from the moulded edge. Cut the knuckle recesses slightly wider so that you can move the hinges, in order to place the centre of each knuckle directly below the rabbet. Plug the old screw holes.

Rule Joint And Hinges

Unsightly gap

If there is an excessive gap between leaf and top when they are level, the hinge knuckles are set too close to the moulded edge. Cut the knuckle recesses slightly wider, and extend the flap recesses so that you can reposition both hinges.

Wood Work Rectangles With Gap Centre

Cutting the convex moulding

Swap cutters, and machine the matching profile along the top panel in similar stages. Gradually raise the cutter until the moulded edge includes a rabbet that allows the leaf and top to lie flush.

Machining a rule joint

A power router is the ideal tool for cutting a rule joint. Matching cutters ensure that the two profiles mate perfectly. Select cutters that will suit the thickness of the table-top panels, and refer to how to establish the radius (see page 102). Typically, 12mm (1/2in) cutters are used to machine 18mm (3A\n) panels. You can cut both profiles with a hand-held router fitted with self-guiding cutters, but a table-mounted router is preferable.

Cutting the concave moulding

Fit the cove cutter in the router and then set the guide fence until it is centred accurately on the cutter. Always machine the profile of the moulding in stages, raising the cutter between each pass, so that you leave not less than 3mm f/sin) of wood along the top edge of the workpiece.

Cutting the convex moulding

Swap cutters, and machine the matching profile along the top panel in similar stages. Gradually raise the cutter until the moulded edge includes a rabbet that allows the leaf and top to lie flush.

The Scratch Mashine Woodworker

Rounding-over cutter jÇove cutter

Rounding-over cutter jÇove cutter

Chapter j $ Knock-down joints use a mechanical fitting to hold components together. Manufacturers produce a wide range of ingenious connectors with which you can assemble rigid joints, using little more than a drill and a screwdriver. Chairs, tables, cabinets and bed frames can all be constructed simply from solid wood or man-made boards, utilizing knockdown fittings.

Bent Wood Frame Bed Halving Joints Tables
Plane Leaf Scroll SawKnockdown Joint
r;t
Make Scroll BenderBarrel Nut Bolt
Woodworking Tools and Installation Tips

Woodworking Tools and Installation Tips

There are a lot of things that either needs to be repaired, or put together when youre a homeowner. If youre a new homeowner, and have just gotten out of apartment style living, you might want to take this list with you to the hardware store. From remolding jobs to putting together furniture you can use these 5 power tools to get your stuff together. Dont forget too that youll need a few extra tools for other jobs around the house.

Get My Free Ebook


Responses

  • BRYCE
    How to bend wood concave bowl?
    6 years ago
  • lilla
    How to make a curve in wood?
    6 years ago
  • OSMAN MEHARI
    How to cut rabbet joints?
    5 years ago
  • haben
    How to make a moulding plane?
    5 years ago
  • JENNIFER
    How to make wooden rabbet plane?
    5 years ago
  • ausonia derose
    How to make a corner halving joint?
    4 years ago
  • Miles
    How to make a Edge Rounding Plane?
    1 year ago

Post a comment