have become one of the most used tools in a workshop, possibly even
more popular than a table saw. A well equiped shop will have both a
plunge base and a fixed base router, it is now possible to get a
combination kit where one machine has both bases. There are many
different bit profiles available, probably a straight bit and a round
over bit are the first ones you will need, but this depends on the type
of projects you will be doing. It is much easier to work with smaller
pieces if the router is mounted on a table. Generally much better
results are achieved by taking several passes making shallow cuts
rather than one pass if a lot of material has to be removed.
are three basic things to look for in a router, horse power, collet
size and variable speed. The lower horse power routers will likely have
the smaller 1/4" collet and will be lighter to use by hand. higher
horse power routers will have the larger 1/2" collet and are better
suited to be mounted in a table. Variable speed is desirable when you
are running large diameter bits, see speed guide chart
The body can be adjusted for the depth of cut by moving
it up and down in the base.
production routing a breeze with this Overarm High Speed Router. Simply
attach a template to the bottom of your work piece and feed against the
table-mounted pin. Overhead cutting lets you see your work. Hydraulic
head and foot controls speed up your work even more. Includes clamp-on
fence for in-line routing and massive tilting cast iron table for
greater versatility. FEATURES: • Fence or pin routing • Foot control
for spindle movement • Head assembly travels on dovetail ways.
larger the diameter of the cutter the faster the tips of it travel, a
large bit will be travelling too fast for optium performance and safety
on a router at full speed unless the RPM is slowed. If your router does
not have a speed control you can use an external attachment.
0 - 1 inch in dia - 22,000 RPM
1 - 2 inch in dia. - 18,000 RPM
2 - 2.5 inch in dia. - 16,000 RPM
2.5 - 3.5 inch in dia. - 12,000 RPM
At 22,000 RPM the tips of a 3/4" bit travel at 49 MPH, on a 3 1/2" bit they would be travelling over 220 MPH.
Always rout against the direction of
the router bit, counterclockwise around the outside of an
object or clockwise around the inside of an object when
routing freehand, reverse this when using a router
Make a series of shallow passes
rather than one cut if a lot of material has to be
Use an edge guide whenever
Always use the router in a vertical
position, gripped in both hands, in a comfortable
over corners on a square of hardboard or plywood in incremental
diameters, then clamp to material and use with a ball bearing pattern bit.
Using a Template
To use a template the easiest way is to use either a pattern bit or a bushing the same diameter as the cutter, to trim an outside edge use the outside edge of the template. To trim an inside edge use the inside of the template. The drawing below demonstrates how following the opposite edge will result in a cut with a different radius.
A router must travel in the right direction so the bit cuts properly.
An easy guide is to lay your right hand palm down with your thumb
touching the edge of the material, your index finger will point in the
direction to move the router. When using a table lay your hand palm up
and your index finger will point in the way to move material.