Step 2 - Cutting Out
Now that you have all your lines drawn on
the cardboard, it’s time to cut. Using your X-Acto
knife, carefully cut through the black and foam
cardboard. The slower you go, the better it will
look when you’re finished. It may help to use
your ruler or straight edge and line it up along
the lines. Remember any vertical lines are slightly
slanted. (Don't cut perpendicular to the top or
bottom of the poster board.) Once you’re done
cutting, remove the tape that held the black and
foam core boards together, but do this carefully
so you don’t tear the black cardboard.
■ FIGURE 3. Front view.
Step 3 - Creating The
This is the most time-consuming step. Here, we are
trying to create small compartments to hold the LEDs. This
step is what gives the scoreboard its depth.
■ FIGURE 2. Diagram of each wall needed to create the
3A - Cut out the following pieces from the cardboard;
all of them are 1" wide (see Figure 2):
Need 10 pieces
Need 8 pieces
Need 2 pieces
Need 8 pieces
3B - Attach aluminum foil to one side. (Double-sided
tape works great or 3M spray adhesive.) This is going to
give each segment a very full look. Don't forget that some
of the little pieces will need both sides covered in
aluminum foil since they serve as a wall for more than one
3C - Once this is done, it is time to glue. Make sure that
the digits are slanted to the left. Glue the walls onto the
foam core board at the thinnest part of the wall. (See
Figure 2 again.) Repeat this process for the second digit.
3D - Tape three pieces of wax paper across the top of
the digits on the foam core board; this will diffuse the light
from the individual LEDs and create a fuller look. Then,
glue the black cardboard over the wax paper to the
foamboard. See Figure 3.
■ FIGURE 4. Example of the LED setup.
April 2010 29