Woodworking Routers
Woodworking routers are used to rout out
(hollow out) an area in the face of a piece of wood. It was a
tool particularly used by pattern makers and staircase makers
and consisted of a broad-based wooden hand plane
with a narrow blade projecting well beyond
its base plate gaining it the nickname Old Woman's Tooth.
Since about 1960, it has been replaced by the
modern spindle router, which was designed for the same work,
although the first electric hand routers appeared in the years
just after World War I. Further refinement produced the plunge
router, invented by Elu (now part of deWalt) in Germany in the
late 1940s. This is even better adapted for many types of
work.
Today, traditional hand-powered routers are
often called router planes. Modern routers are often used in
place of traditional moulding planes or spindle moulder
machines for edge decoration (moulding) of timber.
Woodworking routers could be described as the most
versatile woodworking tool of all. It can be used in just about
every manufacturing function except assembly, however although
it will do almost any kind of cutting or shaping of wood,
custom baseplates, templates, or jigs are typically needed for
more complex cuts.
Some of the uses of routers are:
Mortices and Tennons
The mortise ( the slot or groove) and tennon ( the tounge)
joint is ideal for frames of desks, stretchers of wooden
chairs, book cases and cabinets. It is a joint that becomes
very strong when glued together. The woodworking router is used
to make the mortice, the tennon can be cut with saw or bandsaw,
or if there are many pieces to be made by setting up a router
jig.
Dovetailing
Dovetail joints, for drawers and cabinets
Moulding
The woodworking router is able to cut grooves, edge moulding,
and chamfer or radius the edge of a piece of wood.The shape of
cut that is created is determined by the size and shape of the
router bit or cutter.
There are two standard types of router - plunge and fixed. When
using a plunge-base router, the sole of the base is placed on
the face of the work with the cutting bit raised above the
work, then the motor is turned on and the cutter is lowered or
plunged into the work. With a fixed-base router, the cut depth
is set before the tool is turned on. The sole plate is then
either rested flat on the workpiece overhanging the edge so
that the cutting bit is not contacting the work (and then
entering the work from the side once the motor is turned on),
or the sole plate is placed at an angle with the bit above the
work and the bit is "rocked" over into the work once the motor
is turned on. In each case, the bit cuts its way in, but the
plunge router does it in a more refined way.
Woodworking routers & router bit information
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