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Laser Engraving is the practice of using lasers to
engrave or mark an object. The technique can be very
technical and complex, and often a computer system is
used to drive the movements of the laser head. Despite this
complexity, very precise and clean engravings can be
achieved at a high rate. The technique does not
involve tool bits which contact the engraving surface and
wear out. This is considered an advantage over
alternative engraving technologies where bit heads have to
be replaced regularly. The impact of laser engraving
has been more pronounced for specially-designed "laserable"
materials. These include polymer and novel metal alloys.
In situations where physical alteration of a surface by
engraving is undesirable, an alternative such as "marking"
is available. This is a generic term that covers a
broad spectrum of surfacing techniques including printing,
hot-branding and laser-bonding. In many instances,
laser engraving machines are able to do marking that would
have been done by other processes.
Rotary Engraving is the term used to describe
engraving done with a rotating cutting tool in a motorized
spindle.
The tool, or cutter, cuts into the surface of the material
to a predetermined depth and produces a groove of the same
shape and dimension of the cutter. Rotary engraving
can be performed on a wide variety of materials with
plastic, brass, and aluminum being the most common in the
awards industry. Rotary engraving can be done using
the simplest pantographs to the most complex computerized
engraving machines. The principles are the same on
all. On a pantograph, the operator lowers the cutter
into the material and then forms the character by tracing a
master (copy type, template, etc.).
On a computerized machine, the cutter spindle (Z-axis) is
lowered mechanically and then is moved laterally (X-axis /
Y-axis) by stepper motors to form the characters.
Sand Carving in short, sand carving is a method of
decorating or personalizing glass, crystal, marble, stone,
and the like. Sand carving, often referred to as
"sandblasting" has been used for many decades in the
decorative and architectural industries. Stencils for
this industry began with designing, tracing, and then hand
cutting or machine plotting in order to produce the image
being engraved. Photo resist technology was first
introduced into the market in the early 1980's.
The ability to create stencils photographically instead of
manually began to revolutionize the sand carving industry.
Now businesses could create their own sand carving stencils
in just a fraction of the time it used to take.
Although photo resist film often costs more than traditional
hand cut vinyl and rubber mask materials, the labor and
skill involved with hand cutting cannot compare to
photographically reproduced images able to hold much finer
detail.
By blasting through a transfer with "sand" (aluminum oxide)
text, logos and even photographs can be etched.
Sublimation Printing A
dye-sublimation
printer (or
dye-sub printer) is a computer
printer which employs a printing process that uses heat to
transfer dye to a medium such as a plastic card, printer
paper, poster paper, or fabric.
Most dye-sublimation printers use the more recognized
CMYK colors in that the black dye is eliminated in favor
of a clear over coating. This over coating (which has
numerous names depending on the manufacturer) is effectively
a thin laminate which protects the print from discoloration
from UV light and the air while also rendering the print
water-resistant.
Many consumer and professional dye-sublimation printers are
designed and used for producing photographic prints.
Sublimation is when a substance transitions between the
solid and gas states without going through a liquid stage;
the action of dry-ice exposed to room temperature is
a common example. In a dye-sublimation printer the
printing dye is heated up until it turns into a gas, at
which point it diffuses onto the printing media and
solidifies.