Making it Pretty
Well most of the box is now assembled. If you're
anything like me, not all the MDF joints will line up perfectly. This is
likely a reflection of my own skill. In order to get nice smooth seams and
to add an extra air leak seal to each joint, I used Durhams Wood Putty.
Durhams is a powder filler - just add a little water and presto you get a
paste that you can spread onto the box seams with a putty knife. After
drying to a rock hard finish, the area can be sanded smooth for a nice tight
seam, flat surfaces and sharp corners. When covered by a veneer, you don't
know it's there.
49. Mix up a small amount of the Durhams Wood putty and apply a thin coat
(just like plastering a wall) to the box, paying special attention to the
seams. Apply enough coats to cover all box imperfections allowing time for
the putty to dry between coats.
Tip: Even if a seam 'looks ok', still apply a coat of
the putty. The putty will act as another leak sealer.
Tip: Mix the putty in small batches - it dries quickly.
50. Once the putty is dry, sand the box until smooth.
Applying the Veneer
Now we're really getting close, so let's make this thing
looks like it has a fine wood construction.
51. Note the EXACT location of all the holes for
speaker or port connections since we'll be covering them up with veneer.
Especially the top ports and the bottom spike feet.
Tip: Use a pencil and a sheet of paper to take a
rubbing (negative imprint) of the location in addition to the measured
dimensions so you have a template to work with.
52. Cut a sheet of veneer to roughly the size of the
panel to be veneered.
53. Using the spray adhesive, attach the veneer to the back panel and allow
it to dry.
Tip: The goal in applying the veneer to any panel is
to have a smooth surface. The best way I found to accomplish this is to
apply the veneer starting at one edge and then use a veneer roller to work
that edge from one side to another, eliminating air packets along the way.
After it is in place, to prevent the veneer from lifting, I place another
flat board over the panel and place heavy weights on it to keep pressure on
the veneer until it is dry.
Tip: Apply glue to both veneer and panel before
putting the veneer on the panel.
Tip: Overlap each edge of the panel with the veneer; it's better to cut off
the excess than to end up short.
Tip: Practice with some scrap before you work on your final box.
Tip: Plan how you want the grain of the box to look for each panel and mark
the veneer's destination before you start gluing, so the finish product looks
as good as it can. For example, pick an attractive grain for the box front
and for adjoining sides try to line up the grain orientation. Save the
ugliest for the bottom.
54. Once the veneer dries, use a cautious hand and a
new sharp razor blade to trim excess veneer from the sides of the panel.
55. Repeat the veneer application process for each
side. Make sure to allow each side to dry before applying the next.
Tip: The top panel is the most awkward to install.
First, two 2" holes must be cut to match the two ports installing the
veneer. Next, the tops of the ports must be removed WITHOUT dropping the
bottom portion of the ports into the box, so do this with box on its
side. With the top flares removed, the veneer is slipped over the ports.
With the veneer in place, glue the two top flares onto each port and allow
the glue to dry. Be careful not to drip glue onto the veneer! Finally, glue
down the veneer. I'd suggest doing the bottom first then the top and finally
the sides.
Tip: For the back panel only, cut a hole EXACTLY this size of the WBT
binding posts to allow them to pass through the veneer.
Tip: Be careful moving this around and place it on something clean - the
veneer is fragile!
56. Using the measurement you made earlier, cut or
drill out all the screw holes, speaker cutouts, and port cutouts throughout
the box.
57. Lightly sand the veneer.
Tip: Be careful around the edges and do not oversand. The veneer is very thin and can quite easily be sanded through.
Finishing
Getting excited, you're really close to done now!
It's time to bring out that grain by staining and sealing the box and really
make the project yours by picking out the color scheme - or just use mine.
58. Apply the stain of your choice to the box
according the manufacturer's directions and allow stain to dry.
59. Permanently connect the two 2" ports into the
box using the round black head screws.
60. Following the directions on the can, apply two
coats of the polyurethane to the bottom of the box allowing each coat to dry
completely before applying the next.
61. Install the spike feet to the box using
directions provided and stand the box up.
62. With the box vertical, work from the top down
applying 2-3 coats of polyurethane to the entire box.
Tip: Use spray-on polyurethane around the ports of
the box being sure to get some of the product down the throat of each port.
The glossy ports really are a nice touch.
Tip: Thin coats are best, thicker coats have a tendency to run.
Tip: Lightly sanding with a very fine sandpaper, or
6X steel wool, can enhance the smoothness
of the finish.
Tip: Use a tack cloth to remove all dust before applying any finish.
Tip: Don't sit on a wet speaker!
63. Let things thoroughly dry before handling.
Click Here to Go to Part VII.