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Pitfire
Pitfire is the most ancient clay firing process known to humans
- most cultures have a version of pitfire somewhere in their
pottery past. Simply - it is burying the pots in or under various
combustible materials (wood, branches, leaves,dry dung, whatever)
and having a major BBQ (bonfire) above the pots.
In ancient times this made the pots hard and thus more useful.
Today it is simply for aesthetics - to make them pretty! It's
a rough process - tough on the clay. The finished pieces will
often be chipped or cracked - but with characteristics of the
fire and trauma etched into the surface (and into their souls
. . . ). The end result is often ancient looking -roughly beautiful,
earthy and exquisite.
First of all - I throw cool, interesting shapes - I like elegant
forms, sinuous lines and a feeling of volume for the vessels.
Then, I take this humble ancient pitfire path and "push
the hell out of it" - that is - for color and effect. My
pitfire colors - their intensity and drama - are seldom matched
and I have yet to see better... (sounds immodest, yes - but
true!!)
Horsehairing
First - you’ve got to get a horse to back up really close
to the kiln - a trick in itself! OK, not really - the hair is
already off the horse - although I suspect that a potter (Native
American, as the story goes) bent over a bit too far and discovered
the process in an unfortuante hair-singeing accident.
Horsehairing has not been around so long - and, since all such
definitions are subjective, it is definable as modern American
RAKU depending on how you define modern American RAKU - Be that
as it may, the technique is easy in concept but a bit trickier
in practice - you must heat the pottery to the right degree
(somewhere over 1000 fahrenheit) and then discern the coolness
of the day and how fast you can “artistically” apply
horse tail hair to the piece - getting it all the way around
in an attractive fashion. Too hot and the hair will smoke the
piece too much causing a muddy look - too cold and - very little
or nothing is left for markings. You have between 20 and 45
seconds to do the job well depending on the temperature of the
day, the thickness of the piece (heat retention), the wind and
so on. Doing this inside is out of the question - this stuff
STINKS! :-)
If you don’t like the results - like with RAKU and PITFIRE,
you can risk additional attempts sometimes with the result of
having more “pieces” of the pieces than you intended.
Any quick burning material can leave marks and patterns - feathers
do well - but the horsehair seems to have the right balance
of fat and protein to burn in this nice carbon-y way while the
clay body shrinks and absorbs the lovely squiggles.
Various
Sand Techniques
At the end of the day - when all is said and done, my happiest
moments are almost always throwing pots - I love the physical
pleasure and demands of the wheel and making the forms. As much
as I do adore fire and the pitfire especially, it's the throwing
that "feeds" me - I also deeply appreciate a well
glazed piece of pottery - glazing being a whole other magnificent
art by which I am humbled. But for me - it's the throwing. I
think basically I'm an adult 8 year old coming home from the
oh-so-fascinating muddy creeks of my youth after the rains with
water-filled boots and inches of mud - everywhere!
Years ago - in the 90's - on an extended stay in Italy and
Sicily, I watched as the Italians struggled to afford to save
and restore what is, in the case of Palermo and other such cities
- an overwhelming task of decaying history. One morning I watched
as a work crew on the island of Ortegia - city of Siracusa -
was sandblasting clean an old carved facade, seeing the once
sharply defined reliefs and sculptures emerge softened and distorted...and
I started wondering what I could do with a sandblaster and my
pottery...
Serene
Sand
There are numerous techniques I have developed as a result
- in the case of "Serene Sand", the pottery is thrown,
trimmed and stabilized as best I can (to tolerate the blast
of air and sand) and then immediately sandblasted! - the sand
attacks the surface both pitting it and impregnating the wet
clay - the resulting texture is really cool! You've got to do
this carefully to not literally blow the freshly-made wet clay
piece away! Then after some short drying for more stabilizing,
I put the piece back on the wheel and carve patterns and holes
down into the clay body removing the sand - what's left is a
wonderful relief surface of sand and designs.
The piece is then dried and special stains are applied in various
ways - then it is fired and finally additional decorative accents
and finishing touches are added before a final protective coat
is applied - and voila!
Nuevo
Archeologico
In this variation, the pottery is thrown, trimmed and dried.
I then mask up, protective glasses and all - and crank up the
air compressor (not so romantic, but wait!.....). The blasting
sand does delicious things to the surfaces of the clay- you
can texture, and then wear holes and shapes in the surface.
The resulting effects are really cool! A whole different piece
of pottery emerges - organic, something of the earth yet with
such refined overall structure - the contrasting impressions
are wonderous! The process is time consuming- to create a textural
"theme" and then do the whole pot.
I then apply the terra sig for the pitfire and/or tints to
enhance the whole effect. I love it! (hope you do too...)
As I mentioned, this is a time consuming process so Neuvo Archeologico
pieces are a bit more expensive - like the mosaic, these intriguing
effects take considerably more effort.
Buy Rob Drexel
pottery here
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