Machinecut Mortises

If you plan to cut a number of joints, it is well worth setting up a machine tool to make your production easier and faster. A drill press (or a power drill in a bench stand) can be used to remove most of the waste before finishing the job by hand, or - better still - you can fit a special mortising attachment to the drill press.

Hand Drill Press
Clamp a wooden fence to the base of the drill press, and adjust it to centre the point of the drill bit on the mortise. Set the tool's depth stop to drill to the base of

a stopped mortise. Place a board beneath the work if a stopped mortise. Place a board beneath the work if

Mortise Tools
Drill a hole at each end of the mortise, then connect them with a row of slightly overlapping holes. Pare the sides and ends square with chisels.
Mortise Machine For Drill Press

Using a mortising attachment

Adapt a drill press by fitting a mortising attachment, comprising an auger drill that removes the waste, coupled with a square hollow chisel which shapes the mortise at the same time.

Using a mortising attachment

Adapt a drill press by fitting a mortising attachment, comprising an auger drill that removes the waste, coupled with a square hollow chisel which shapes the mortise at the same time.

Square Hole Mortice
Start the mortise by cutting a square hole at each end. Plunge the chisel firmly but don't force it. especially
Square Slot Machining

2 Removing the waste

Remove the waste between the holes in stages. Work steadily at an even pace, to avoid any overheating of the auger bit.

Hollow Chisel Mortise Bit

1 Setting up end stops

With all the workpieces cut to size, clamp a block of wood at each end of the fence to limit the movement of a workpiece to the length of the required mortise.

Using a slot mortiser

It is possible to adapt a planer-thicknesser to machine mortises by fitting a milling chuck to the end of the tool's cutter block. The workpiece is moved relative to the stationary cutter by means of a special mortising table that is adjustable in height. When using this type of attachment, it is imperative to cover the planer cutters with the appropriate guard.

Cutting a mortise

Avoid the risk of breaking the cutter by machining a mortise in stages, and never plunge deeper than the cutter's diameter during any one pass. Since the machined mortise has rounded ends, either chop them square with a chisel or file the corners off the tenon.

Mortise Joint Machines

workpiece

rear stop block front stop block equal to mortise length

Cutting mortises with a router

Although you can cut mortises with a hand-held router, it is much more convenient to machine them with the tool inverted in a router table or workcentre. Once you have made the initial adjustments, you can cut any number of identical mortises without having to mark out the workpieces.

cutter

u front stop block equal to mortise length rear stop block workpiece

Mortise Joint MachinesMortises With The Router

1 1 u^ ■ J. -.. . . -■.,.-

! "1 m

2 Machining the mortise

With the work butted against the rear end stop, hold the wood firmly against the fence and lower it slowly onto the rotating cutter. Feed the wood forward until it comes to rest against the other end stop, then carefully lift it clear of the cutter. Cut a deep mortise in stages, raising the cutter between each pass.

Mortise And Tenon Drill Press
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.

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Responses

  • vickie
    How to Drill a Square Hole.?
    7 years ago
  • joe
    How to cut a square hole in wood using a chisel?
    11 months ago
  • may
    How to cut a square slot in wood?
    3 months ago

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