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The Application of Theory
Integration of scales – mass-produced plus locally
made parts
An important but little explored aspect of sustainable product design
is a reassessment of our scales of production so that products can
be made, repaired and reused within an industrial ecology of cyclic
resource use at the local or regional level. Where appropriate, products
and parts could be made using locally available resources, but there
would remain many components that would be more appropriately
manufactured in high quantities. For example, light sockets, bulbs
and electronic parts would be difficult to manufacture at the local
level and it would be inappropriate to do so. It is important to retain
standardization of these types of components for safety reasons and
to ensure compatibility. Sustainable product design must, therefore,
combine and integrate scales – using locally and regionally produced
parts from regional materials in combination with mass-produced parts.
If the mass-produced parts are designed so that they are not specific
to a particular product, they can be recovered and more easily reused
in other applications. A standard, mass-produced lamp socket can be
used in a variety of lighting designs; similarly, a length of threaded rod,
electrical cable or a keypad has many possible design applications. On
the other hand, a specialized moulding produced for one particular
product application might be difficult to reuse.
The Lumière Floor Lamp, Figure 9.12, is a simple design that illustrates
this integration of scales. It utilizes a number of off-the-shelf, mass-
produced components, including a lamp socket, a mini fluorescent
lamp, cable, a floor switch, threaded rod and fasteners, together
with locally produced and found components – reused hardwood
components for the cross
-arms and base, a sheet of locally made
paper as the shade and a large pebble for the base weight. Packaging
and shipping of components is reduced to a minimum. Fabrication of
several parts and product assembly is done locally and the basic design
can be modified and adapted to suit local requirements. In addition, the
design is such that its construction is explicit and easily comprehended
– this facilitates repair and disassembly for replacement or recovery
of parts. Reuse is encouraged by the fact that all mass-produced
components are standard, off-the-shelf parts. Another design that
combines a mass-produced part with a locally made base is shown in
Figure 9.13, G-Clamp Nutcracker.
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