30 ■ POPULAR WOODWORKING
Concrete & Wood Table
20
20-22 I cut the complimentary
angles on the table saw. First,
with the leg supported on a sled
that lips over my fence. Then, the
complimentary angle is cut with
the workpiece on the table.
23 I used domino joinery to help
align the miters during glue-up and
reinforce the corners.
24 The dominos I had on hand
were a little long, so I trimmed
them with a hand saw.I used a single board for a continu-
ous grain pattern. (A rhombus is a
parallelogram with opposite, equal
acute angles, opposite, equal obtuse
angles, and four equal sides. Yes, I
had to look it up too.) The rhom-
bus slants at 30° in the opposite
direction of the 15° leg, meaning
the inner acute angles are 60°, while
the inner obtuse angles are 120°.
From a design perspective, I chose a
30° angle because the sharper slant
gives the table a more aggressive
and dramatic look, while still being
proportional to (double) the angle
of the 15° waterfall leg.
After milling the walnut lumber,
I moved on to cutting the miters.
The rhombus shape meant that the
four sides would be cut identically,
with each side having a 30° miter
on one end and a 60° miter on the
other end. To make the 60° cuts,
I used a vertical tenoning jig with
the blade set to 30°. I then left the
blade in the exact same position,
and used my miter gauge to make
the 30° cuts. (Pro Tip: Any time
you’re cutting four pieces for a
quadrilateral, make the cuts on oneend of all four piece, then cut the
other side of all four pieces on the
other side of the blade, without
moving the blade. This way, any
error in the cut angle on one end
will be off set by an equal and oppo-
site error on the other end of each
board, and you’ll get perfect miters
off the blade.)
For the joinery, I used Festool’s
domino joinery. The only tricky
part for this project was the domino
size. All I had on hand were 8mm x
40mm dominos (which I defi nitely
wanted for this project), and 40mm21
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