cutting diagram 3-ft bookcase

FEED TUBE AND GUARD
Feed tube
front
NOTE:
A, B, C,
and Il arc
made from
%"-thick
acrylic
plastic.
Squlrrel
guard
Feed tube
back
Next, create openings for the
bird feed to drop through. To do
this, lay out a '/."-dia. hole centered
on the width of each piece, and '/r"
from one end. Then drill a hole as
shown in Figure 1. A Forstner bit
bores a clean hole. Finally, sand each
opening into a "U" shaPe.
Now the feed tube can be glued
together. To hold the pieces square
while gluing, I used my table saw
and rip fence as a guide (Fig.2).
Once youte set up, place a side
@) apinst a front/back (A).Then add
START WMI ftE PLASNG PARTS
The best place to start this project is the glue. (This sounds strange, but it
by making the feed tube. Then the works, see page 83.) Instead of gluing
other parts can be built around it. all four pieces at once, glue two
To make the feed tube and guard, halves, then join the halves together.
I used '/*"-thick acrylic plastic. It can Next, test fit the base (C) into the
be found at home centers, and You'll tube. Then drill mounting screw
need a piece at least 24" x36". To holes in the base, and a centered hole
learn more about working with this for the weight cord. Dont mount the
material, see In the Shop on Page 82. base yet. [t gets installed later on.
Start by cutting nvo feed tube This is a good time to make the
front/backs (A) and two sides (B) G.e squirrel guard (D). A Simple Routet
above).Also cut a feed tube base (C). Tiammel (below) makes it easy.
Then set the rest of the plastic aside After it's cut to size, enlarge the
for the squirrel guard that's cut later. guardt center pivot hole to fit
around a mounting post.A 2'/i'-dia.
hole saw cut just the right size hole
for the 2"-ID copper piPe I used.
MAKE IHE FEEDER BASE
As the Basez4ssembly on the next page
shows, the feeder base is simPle - a
floor and top joined by coPPer
columns. The columns sit in shallow
counterbores, and carriage bolts in
the columns snug the base together.
Get started by cutting the 1/2"
plywood floor (E) and toP (F) to
size (Tbp and Floor Deralls).Then use
ajigsaw to cut an oPening centered
in the top (F). Size the oPening so
the feed tube just fits through.
Now drill counterbores and bolt
holes for the columns.The counterbores
come first, then holes through
the floor and top for the bolts.
With these drilled, look again at
the Floor and Tbp Details. This is a
good time to drill the rest of the
mounting screw vent, and drainage
holes in both pieces.
Also, using the feed tube base (C)
as a guide, drill holes for screws that
Clrcle cuttlng ls easy wlth a loutel and shoPbullt trammel. To
make one, flrst remove the router' sutsbase' and trace the blt
openlng and mountlng screw locatlons on a lectangular plece of
hardboard. Bore these holes and mounthe router. Next, lnstall
a blt ln the router (l used a %" stralght blt). Ihen measure 9%"
from the bit's edge and dilll a hole for a pivot pln. I drllled thls
hole wlth xr/e" blt, then used
the blt as the pln.
%" hardboard
66
woRKBENcH tr NovEMBER I
DECEMBER 2000