"Who Rescued Who?"From Concept to Creation
Lorri Acott
In a small
studio in the
Black Hills of
South
Dakota,
Lorri Acott
creates the
life sized
sculpture
reminding us
of our unique
relationship
with our
dogs,
"Who
Rescued
Who?"
First, a
maquette is
sculpted. A
maquette is
a small
version of
the
sculpture. I
usually
sculpt the
maquette
using water
based
paperclay.
I take a picture of the maquette and enlarge it to
the size of the piece to be sculpted. This helps
me to get the proportions of the lifesize version
just right.
Before
sculpting, I
make an
armature
(internal
support
structure)
with foam
and pipes.
This insures
that the
sculpture will
be stable for
the addition
of the clay,
and later, the
mold.
Using the
image of the
maquette as
a pattern, I
cut sheets of
foam and
glue them
together on
the pipe
structure.
Now the foam is sculpted with a saw. Using the maquette, the
enlarged image, and my artistic sensibliltiies, I create the
sculpture in foam, making adjustments as I go.
The clay that I use for large peices is quite stiff so that it will
stay together for transportation and molding. It can easily be
softened in a microwave which makes it much easier to use.
Clay is then applied to the sculpted foam. The texure, the
details, and the life of the piece are created now.
The piece
comes
together
quickly if all
the prep
work is done
well. Soft
warm clay,
good
backround
music, and a
block of time
with no other
demands...
This is the
part that
gives me the
most joy.
I
love
the feel of
clay in my
hands.
The original needs to be divided or cut into pieces for the
molding. For most foundries, each section can be no larger than
12"-18".
The first layer of the rubber-like mold material is applied. It will
pick up every detail in the original sculpture down to the
fingerprints of the artist.
After the first
layer is
applied, a
shim line is
created with
a double
layer of
cards so that
the mold has
a place to
separate.
The second
layer of the
mold
material then
is applied.
Keys are
created and
attached to
the
shims.This
allows the
flexible inner
mold to fit
exactly into
the hard,
supportive
mother mold
to be added
next.
After the plaster for the mother mold is mixed and applied, it is
allowed to dry. The mother mold is removed, and the rubber is
carefully removed as the first layer is cut with an exacto blade.
After the molds are complete, wax is painted into each mold.
This will create a hollow wax copy of the original to be used in
the centuries old "Lost Wax" casting process.
The wax is "chased" which means that all the mold lines, air
bubbles, and imperfections are removed. PIeces are re-
assembled to check the fit, and then re-cut to prepare for
spruing.
Wax gates
are added to
create a
channel
through
which the
bronze can
flow.
This is called
spruing.
The sprued waxes are dipped in a ceramic slip, then in silica
sand and hung to dry between layers. Each piece will be dipped
5-10 times and allowed to dry completely before firing.
Waxes,
covered with
the ceramic
shell, are
now fired.
The wax
melts away,
thus the
term "Lost
Wax
Process".
The shell is put back into the kiln and reheated so that the
bronze won't cool too fast, and molten bronze is poured into the
cavity left by the wax.
After the bronze cools, the ceramic shell is knocked off with a
hammer.
Sand
blasting is
necessary to
remove all
the remnants
of the
ceramic
shell.
All of the bronze pieces have been cast and all the shell
removed. Now they need to be welded back together.
Metal chasing is the step of the process in which all the weld
lines are removed, and the artist's fingerprints are put back into
the sculpture.
Patina is the application of chemicals and heat
to create color. It is the final step of the process
just prior to basing.
The base is created and then attached. The
sculpture, "Who Rescued Who?", is complete.
"A dog doesn't care if you're rich or poor,
educated or illiterate, clever or dull. Give
him your heart and he will give you his." "
-- John Grogan, Marley & Me
See more of Lorri Acott's work at
www.lorriacott.com