Tony Ferguson on tue 22 jan 02
Greetings,
I am designing a gas kiln for a student of mine and am apealing to some of
the pros out here.
The kiln is designed around 2 12 x 24 inch kiln shelves. a 6 inch alley
border around the 24" square and then the wall (double). The kiln will be
36" inches high with a sprung arch on top. My experience with a similiar
kiln like this was a west coast kiln, updraft, 8 burners nat gas. Fired
like a dream.
I was wondering if I make the aforementioned kiln into a down draft, (a 9
inche square hole at the bottom center?) would two burner holes on the back
bottom of the wall shooting flame into the alley toward the door at 500,000
btu's each (burner suggestions for propane apprec.) be sufficient to get
good reduction to cone 10? I've built wood and raku kilns but not cone 10
gas so this is new to me and for a friend so I don't want to screw it up.
I've been combing the books and getting on the studio floor and drawing with
pen and square to scale. Any suggestions would be appreciated. She wants
to have a frame welded up (just like the west coast, Olympic, etc) so the
kiln will be elevated and one would load waist high, a door, etc. I would
imagine we would need a stack on the back 4 feet above the top of the kiln
or so, internal diameter same as the hole?. And where in the heck is the
best place to put the damper? Thanks to any who respond. Got plans?
Great!
Thank you.
Tony Ferguson
315 N. Lake Ave. Apt. 401
Duluth, MN 55806
USA
218.727.6339
Stoneware, Porcelain, Raku
http://www.AquariusArtGallery.com
----- Original Message -----
From: "vince pitelka"
To:
Sent: Wednesday, January 16, 2002 7:57 PM
Subject: Workshops at Appalachian Center
> Our brochure should be out very soon, but I thought I would go ahead and
> post information on the clay workshops for summer 2002. This is a bit of
a
> "Clayart Fest," in that many of the presenters are Clayart participants,
> including Shiela and Tony Clennell, Dannon Rhudy, David Hendley, Paul
> Lewing, and myself.
>
> If you would like to receive a brochure, please send an email message with
> your snail-mail address to our secretary Erika Smart at esmart@tntech.edu
> asking her to put you on the workshop mailing list . Please do not send
> brochure requests to me. Thanks -
> - Vince
>
> June 3-7
> Utilitarian Pottery
> Ron Meyers
> $260
> This class will explore the potential of making a variety of useful forms
on
> the potter's wheel using earthenware clay including drinking, pouring,
> storing and serving shapes. The instructor will demonstrate these forms
and
> will show slides of historical and contemporary ceramic work to give
> students the basis for
> working on their own forms. Intermediate-Advanced
>
> June 3-7
> Handbuilding: Tricks of the Trade
> Vince Pitelka
> $250
> The objective of this workshop is to develop a particular mindset, an
> adventurous inclination to use thrown and handbuilt components in new and
> different ways, opening up the possibility of original forms inaccessible
> through more traditional ceramic methods. This workshop will explore new
> ways of approaching coil and slab construction and will use the potter's
> wheel as a tool for creating components to be used in handbuilding.
> Although our primary objective is the design and construction of clay
forms,
> we will bisque-fire as much work as possible so that it can be transported
> safely. Basic-level competence in handbuilding and/or throwing is
> recommended.
>
> June 10-14
> The Art of Throwing & Raku Firing
> Harry Hearn
> $250
> Develop and improve your throwing skills in order to make the pots of your
> dreams. Bring your throwing questions, problems and hopes. Some of the
> topics to explore include: the mystery of centering, the myths of trimming
> and the magic of throwing larger forms. Other mysteries, myths and magic
> will be encountered as we finish many of our pieces in the raku kiln.
> Beginning-Advanced, $10.00 material fee payable to instructor
>
> June 17-21
> Finishing Porcelain
> Jason Briggs
> $280 (includes glazes)
> During this workshop students will explore a wide variety of
> firing/finishing possibilities for porcelain, including colored clays,
> colored slips, terra sigilatta, soda-firing, lusters, as well as,
> traditional cone 10 glazing. Students will also explore some handbuilding
> techniques and post-firing options such as sanding and the use of mixed
> media. Participants will come away with a new appreciation for this
> material, especially those with no former porcelain experience.
> Intermediate-Advanced.
>
> June 24-28
> Tile: Making, Decorating, Marketing
> Paul Lewing
> $280 (materials included)
> A hands-on class in which students will make tile on the slab roller and
> extruder and then decorate and fire tiles with cone 5 glazes and china
> paints. The instructor will lead discussions which will include: glaze
> chemistry and glaze calculation software; tile installation; the marketing
> of tile; commissions; working with architects and designers; doing shows
and
> building portfolios. Demos and lectures will occupy part of each day with
> the rest of the day devoted to students' individual tile projects. To
view
> Paul's work, visit his website, "paullewingtile.com".
> Intermediate-Advanced.
>
> June 24-28
> Color and Line
> Rimas VisGirda
> $280
> In this workshop participants will learn hands-on methods for pattern
> development, narrative imagery and symbolism using underglazes on
> earthenware with wax resist and wax inlay techniques for a black outline.
> Also covered will be multi-fire techniques using underglaze pencil shading
> to give depth and enhance texture. There will be discussions of workshop
> techniques applicable to resources within your own studio (i.e. glazes,
> engobes, majolica, low temp, mid-range and high fire). Also included will
> be discussions of multi-fire processes, handbuilding and throwing
> demonstrations, and also firing pieces and critiques of finished work. To
> view examples of Rimas' work, visit the websites, "guild.com" or
> "sdgallery.com".
> Intermediate-Advanced; materials fee TBA
>
> July 8-12
> Beyond Handles: Creative Extruder Use for Potters
> David Hendley
> $250
> During this workshop the instructor will cover three broad areas using the
> clay extruder: extrusions as additions to wheel-thrown pieces, such as
> handles, feet and rims; extrusions used as building components to
construct
> forms; and hollow extrusions that make vessel forms with the additions of
> tops and/or bottoms. He will also cover the principles of extruder die
> design, fabrication, modifications and trouble-shooting. Students will
> spend one day actually making extruder dies. Intermediate-Advanced
> (Students should be familiar with basic clay-workings skills, such as
> throwing on the potter's wheel, forming clay slabs and joining together
> shapes of clay. Experience using a clay extruder is helpful, but not
> necessary.); Materials Fee, $50 payable to instructor.
>
> July 15-19
> From the Kitchen to the Living Room
> Tony and Sheila Clennell
> $260
> This workshop will focus on handles, special details and embellishments.
> Topics covered include making pots in sections, altering them, decorating
> them and finally handling them. Students will make teapots, beakers,
> plates, platters, bowls, jugs and jars. They will learn all aspects of
clay
> handles, lugs and embellishments and be introduced to making their own
cane,
> reed, grapevine and twig handles. To view the Clennels' work, visit their
> website, "sourcherrypottery.com". Intermediate-Advanced; materials fee
> $20.00, payable to instructor.
>
> July 22-26
> Sculptural Work Using Thrown and Handbuilding Methods
> George McCauley
> $260
> During this class students will use thrown and handbuilt methods to make
> sculptural work. Students will make pots and/or sculpture using personal
> narrative, mythology, some life experience or story, etc., without regard
to
> function, although use can be a point of departure. Time permitting some
> work will be single-fired in a soda kiln. Intermediate-Advanced.
>
> July 29-Aug 2
> Beginning to Throw
> Dannon Rhudy
> $250
> This workshop introduces students to basic pottery techniques, with an
> emphasis on beginning throwing. Students in this class will work from the
> cylinder toward acquiring and understanding several pottery skills. This
> foundation can be used for producing an array of functional or sculptural
> forms, including vase, bowl and cup forms. Beginning.
>
> Vince Pitelka
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> Home - vpitelka@dtccom.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> http://www.craftcenter.tntech.edu/
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
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> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
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Roger Korn on wed 23 jan 02
Hi Tony,
I've built a similar kiln in ITC-coated 2600 degree fiber, with an IFB floor,
sitting on cinder blocks, with the flue from the center through an IFB-lined
channel to a stack base incorporating a sliding shelf damper in a slot. 7x7 at the
stack base, 4 MR750 venturi burners firing two in front, two in back, aimed
horizontally at each other, so the flame path 'sticks' to the side walls.
4" of fiber isn't enough, but I can reach ^10 in 4 hours, not that I'd want to.
Total of 300,000 BTU input to a 12 cubic foot stackable volume and it's WAY more
than enough, even with the inadequate 4" fiber - I have to "fire down" to about
900C before turning the burners off. The kiln's in OR and I'm in AZ at the moment,
but I'll send plans and pix if you're interested, next time I'm up there (~30 days
from now). Fired +- half a cone right out of the chute, with good Cu reds and
celadons. Got lucky. With scrounging most of the frame iron, stack flue (7' high 16
ga. steel, 1" fiber lined for 4', 7" ID) and cinder blocks, the cost was under
$800.
Let me know if you want plans/photos and "What I'd change next time", I'll get them
on the web site when I get back to OR,
Roger
Tony Ferguson wrote:
> Greetings,
>
> I am designing a gas kiln for a student of mine and am apealing to some of
> the pros out here.
>
> The kiln is designed around 2 12 x 24 inch kiln shelves. a 6 inch alley
> border around the 24" square and then the wall (double). The kiln will be
> 36" inches high with a sprung arch on top. My experience with a similiar
> kiln like this was a west coast kiln, updraft, 8 burners nat gas. Fired
> like a dream.
>
> I was wondering if I make the aforementioned kiln into a down draft, (a 9
> inche square hole at the bottom center?) would two burner holes on the back
> bottom of the wall shooting flame into the alley toward the door at 500,000
> btu's each (burner suggestions for propane apprec.) be sufficient to get
> good reduction to cone 10? I've built wood and raku kilns but not cone 10
> gas so this is new to me and for a friend so I don't want to screw it up.
> I've been combing the books and getting on the studio floor and drawing with
> pen and square to scale. Any suggestions would be appreciated. She wants
> to have a frame welded up (just like the west coast, Olympic, etc) so the
> kiln will be elevated and one would load waist high, a door, etc. I would
> imagine we would need a stack on the back 4 feet above the top of the kiln
> or so, internal diameter same as the hole?. And where in the heck is the
> best place to put the damper? Thanks to any who respond. Got plans?
> Great!
>
> Thank you.
>
> Tony Ferguson
> 315 N. Lake Ave. Apt. 401
> Duluth, MN 55806
> USA
> 218.727.6339
>
> Stoneware, Porcelain, Raku
> http://www.AquariusArtGallery.com
> ...
--
Roger Korn
McKay Creek Ceramics
In AZ: PO Box 463
4215 Culpepper Ranch Rd
Rimrock, AZ 86335
928-567-5699 <-
In OR: PO Box 436
31330 NW Pacific Ave.
North Plains, OR 97133
503-647-5464
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