FIGURE 2-25
The tab assembly
ASSEMBLIES
FIGURE 2-26
The hanger assembly
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DESIGN FOR CNC
TAB ASSEMBLY
A tab assembly locks one or more tabs into a
perpendicular face, using an end-to-face joint
or three-way joints to enable one-way and
two-way framing. The Cat in Bag ii Table uses
multiple tab assemblies to lock the tabletop
into the four members underneath it. In a sim-
ilar fashion, the One to Several Table uses tab
assemblies that are shaped like crosshairs.
Tab assemblies work on vertical surfaces, too.
The sides of the Poke Credenza use tab
assemblies to lock a shelf into place. The Cel-
lular Screen uses tab assemblies to lock the
front and back faces onto the vertical frame.
HANGER ASSEMBLY
Hangers are beams that transfer horizontal
tributary loads to vertical members. A hanger
assembly is similar to a tab assembly in that it
employs a three-way joint or an end-to-face-
to-edge joint to lock three parts together.
However, it differs because it uses these tabs
to support a beam. The One to Several Table
has hangers along its perimeter, where its
frame (which supports the tabletop) locks in
and is supported by the table’s sides. The
Open Cabinet also has a hanger assembly at
the bottom of each side, where a beam that
carries the load of the shelves locks in and is
supported by those sides.
