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The
vertical members and cantilevered supports in raw form...12/4 x 14" x
13' of white ash for the former and 8/4 x 13" x 13" white oak for the
latter. At $1 per board foot, it was a bargain! The ash was a little green,
but that would make for tighter mortises as it dried over time. Due to
the weight of this lumber, I had to piece it prior to moving it into the
shop for further “refinement”...the Tundra, hitch support and mobile work
support held everything steady for crosscutting with a circular saw. |
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These
are the rough blanks for the horizontal supports, both for the bench and
the lumber storage. Each was sent through the planer to insure a consistent
thickness and then cut to finished length and width. |
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Each
of the horizontal supports is fastened to the vertical members via mortise
and tenon joints. Here, one of the two table side supports is shown with
the basic tenon formed. |
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The
tenons are further refined to provide a double tenon arrangement. In retrospect,
all these tenons should have been created after mortising the vertical
members...it’s more challenging to make mortises to fit tenons than the
other way around. But everything worked out fine in this case. |
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Here
are the two table supports with the tenons completed and the dados cut
for the plywood gussets. The plywood I used for the remainder of the structure
is 18mm thick, so adjustments to the dado had to be made to insure a snug
fit...and it was snug...required strong blows from a rubber mallet to
seat the plywood into the grooves! |
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Tenons
on all the horizontal supports were cut on the table saw and band saw.
Here, you can see the cheek cuts being made using a tennoning jig. Due
to the height of the material, I had to completely remove the UniGuard
from the saw to provide clearance for cutting the wider table support
members. |
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The
band saw was used to finish up the tenons These machine cut tenons were
all pretty much right on the money and only needed minor adjustment when
fitting them into the mortises. |
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The
horizontal lumber support members were gang-cut on the band saw to provide
a more pleasing profile. Double sided carpet tape insured that all four
units were as identical as practical. |
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Each
of the lumber supports had the lower and front edges rounded over on the
router table and then were sanded smooth. No finish was applied...and
may never be, although oiling them is what I would do if I wanted to unload
the lumber they are now supporting! |
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The
vertical support members were brought to approximately 3" square and 8
feet long. Since these were made from rather green wood, they had minor
variations in straightness. However, this really wasn't an issue as they
would be bolted to the wall and brought true in the process. Obviously,
I wouldn’t do this if I was making fine furniture! Also, my installation
uses four vertical posts instead of the two shown in the magazine article.
I felt that I didn't want more than 24" spans for supporting lumber. I
also eliminated the large drawer that is on the original as it would not
have worked out due to my shop arrangement. |
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Just
to be able to say that I was able, I made the first two mortises using
a forstner bit and chisels. Needless to say, this was not fun work...when
I got to the chiseling part! |
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Speaking
of which...one down, one to go. These actually worked out fine and after
cleaning them up, they were as good as the rest made with the mortiser.
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What
can I say? The Jet mortising machine made quick work of the rest of the
mortises. In fact, they took about the same amount of time that the first
two took by hand...all six more, that is. |
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Ah...that's
a fit. |
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It
just so happens that the big picture window in my shop is eight feet wide
through the casings. That worked out really well in spacing the vertical
supports for the two table ends. (The whole table is supported by only
two horizontal members that are 12 inches wide and 32 inches, sans the
mortises) Lag bolts and long square-drive screws were used to securely
fasten each post to the wall. The holes for the hardware were countersunk
so that they could be plugged after final assembly. |
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In
this view you can see the table supports in place. These get installed
prior to any other components...it’s very important that the spacing of
the two outside vertical members be exact so that the table can be assembled
in place. In my case, the finished size of the table is 96 inches wide,
including the side supports. Obviously, the length of the plywood gussets
needs to be exact...it's probably a good idea to size them after installation
of the posts and table end supports if you take on this kind of project. |
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The
tenons are also pinned in place with maple dowels for a strong joint.
These aren’t going anywhere! Between the final construction date and the
date of this writing, the table has not sagged even a millimeter. That’s
a blessing considering the combined weight of the table, miter saw and
anything else setting on the table depend on only two oak supports. |
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The
two remaining vertical supports are spaced evenly between to two outer
ones. These largely support the lumber overhead, but do have the rear
plywood gusset attached for additional strength. |
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There
are five plywood gussets were cut to size for length and width. three
of them also are notched for the tool area recess. This cut was done with
all three ganged together to insure they would be relatively identical. |
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The
rearmost plywood gusset had to be notched to accommodate the duct work
for the under-table collection arrangement. An additional piece of plywood
was sistered to close the gap and keep the rear of the table stiff. This
rear gusset was also screwed to the inner posts for strength. |
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You
can see more clearly in this picture the clearance necessary for the duct.
The second gusset has also been installed at this point. |
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In
addition to gluing the plywood into the dados of the side supports, long
square-drive screws were driven into countersunk holes from the outside
of the side supports and into the plywood gussets. The holes were later
filled with dowel stock and sanded flush. Tension was kept on the assembly
by ganging clamps. You can also see a Bessey K-body clamp being used to
support the end of a gusset during the “glue and screw” process. |
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All
five gussets are now installed and it’s time to move on to the next step--the
tool support recess. |
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The
first piece installed is the bottom section and it completely fills the
opening. This piece will serve as the base for all uses of the table system.
Prior to installation, a six-to-four inch duct reducer was installed to
accommodate the down-draft dust collection design. It’s important to pre-install
this as cutting the circular hole would be difficult later on. |
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Two
side pieces are fitted to close off the recess and provide support for
the table top yet to be installed. |
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I
purposely made the recess deep enough to more than take care of my miter
saw. The MDF piece you see here is to raise the level of the base slightly
so that the underside of the saw can be sealed into the dust collection
system. More on that later... |
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The
slightly oversized 3/4" MDF top was then installed with square-drive screws
into the plywood and oak under table system. A router with a flush-trim
cutter was then used to remove the top from the tool recess area. |
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The
same router setup was used to trim the table top flush with the support
system and deal with any minor variation in the same. Although not shown
in these pictures, the top was wrapped with an oak edge band to protect
it and give it a finished look. |
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A
view of the completed table prior to installation of the saw and fence
system. |
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Here
you can see the shimming necessary to bring the top of the saw exactly
level with the table top and the weather stripping to further seal the
bottom of the saw for dust collection. This is important as you need to
insure that the majority of the air being drawn into the duct is coming
through the saw and not under it. The saw was also retrofitted with an
oak “zero-clearance” insert with additional 1/4" holes to draw dust down
through the machine. The combination of the down-draft collection with
the standard dust port of the saws seems to get most of the chips created
during a cut...but not all. I don’t think that is possible with a miter
saw. |
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The
finished project with the temporary fence based on Incra track installed.
My next project for this station is to enhance the fence with a little
height and make it easily removable for flexibility when making crosscuts
and dados of long stock on the table saw and so I can use the space for
extra assembly space if necessary. |
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One
example of how I’ve enhanced the use of the miter stand is how I’ve
installed threaded inserts to fasten jogs during use. Shown is my Kreig
pocket-hole jig; the Leigh dovetail system is similarly accommodated.
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The
“relatively final product”...only the oak banding remains to be installed
in this picture. As of this writing, I'm very please with the miter system
and it has worked out just as I anticipated. Without any legs to get in
the way, it's easy to store additional lumber underneath as well as tools
and other items. |
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Close
up of the miter station fence system. The 1/2" birch plywood base is removable
and keyed to the table top with small dowels for exact re-alignment. The
metal fence itself is channel from Incra. Because it's removable, the
entire stand can be cleared for other uses. |