NOVEMBER/DECEMBER 1983, No. 43, $3.50 Making ... - Wood Tools

(continued)
Methods of Work
Y.
out of a straight, flat lx4. Now rip another board half the
diameter of your router base (measure from the center of the
bit to the edge of the base) and secure it to the fence with flat
hinges. As shown in the drawing, offset the hinges so that
they won't protrude when the extension board is swung up
out of the way. -James F. Dupler, Jamestown, N.
Mortising table for drill press
Travel regulator
Workpiece
Frustrated with hollow-chisel and router mortises, I made this
drill-press mortising fixture, which works even better than I
expected. Its secret is a pair of precision ball-bearing drawer
slides. Precision drawer slides have less play than regular
drawer slides, and move so smoothly that I'm sure there are
other uses for them in the shop.
This is how the fixture works. First chuck an end-mill cutter
in the drill press, then set the travel regulators to produce
a mortise of the desired length. Now position the fence to
center the mortise in the thickness of the stock. To cut the
mortise to the desired depth, gradually lower the cutter while
sliding the table back and forth.
Rather than squaring up the ends of the mortise, I simply
round over the tenon with a file.
-David Grimm, Richmond, Mich.
10
Improved wooden dog
A couple of years ago, we furnished our
Tage Frid style workbenches with these
maple dogs. They are strong, easy to make
and adjustable to any height.
Cut the dog to rough shape, sizing it
for a loose fit. Then drill a hole through
the dog so that it won't split when you
wedge it open. Next cut the dog's body
with a bandsaw to the drilled hole. Wedge
layers of thin veneer in the kerf until the
cwo halves are flared enough to hold the
dog securely.
-Michael L. Sandi land and
Phil Holland, Vancouver, B.C.
Tool-grinding fixture for the belt sander
Double-up plywood for rigidity
Adjustable tool rest
We developed the fixture above to take advantage of our belt
sander as a wide-surface grinder. Because the sanding belt has
much more surface area than an abrasive wheel, the grind is
cool, with less danger of overheating the cutting edge. The
fixture is easily removed, so it doesn't interfere with other,
more conventional uses of the belt sander. The tool rest can
be reset using a wing-nut/slot arrangement to grind at different
bevels, or to give more or less hollow grind.
-Steve Vetter and Norman Gritsch, Washington, D.C.
Routing multiple mortise-and-tenon joints
2. Cut
3. Clamp
away
most of waste.
jig, rout.
then clean corners with chisel.
After several less-than-satisfactory attempts to construct
through, wedged multiple tenons, I designed this router jig
for accurate, repeatable results.
The jig consists of strips of plywood or particleboard laminated
together as shown in the drawing. The long, continuous
pieces correspond to the spacing between mortises. The
shorter pieces are glued up to form openings and projections
that correspond to the thickness of the stock.
To use the jig, place it over the workpiece to be mortised
(or tenoned) and pencil in the outline of the joint. Remove