
Wednesday, September 17, 2008
Clay Mixer

Thursday, September 11, 2008
More Shoveling

Mud, Mud, and more Mud, and still more mud to shovel. This is what I shoveled yesterday after work. This stall is where I plan on putting my electric kiln once it dries up and I do a little more cleaning. Hopefully I'll get it moved in this weekend and have it wired up and ready to fire by the following weekend. So....if people have been wondering why I haven't been making pots, this is why.
Some other notes, thoughts...
The Viroqua Empty Bowls Project is coming up in about a month. I'll post more info when I get it. Hopefully I'll be able to work in someone elses' studio to crank out some bowls. Must get on that right away.
Another upcoming project will be a new blog, in addition to this one. I have been asked to start blogging about "Arts In The Coulee" (the coulee region where I live). I was thinking about featuring an artist or exhibit each week and post artworthy news and events as they pop up. Still getting all the details but stay tuned for the launch.
The only other thing to say is that I must try firing a small brick kiln this weekend that a little girl named Natalie stacked up. I'll have a post dedicated to that pretty quick. I'm pretty excited about getting my bisque kiln into operation. Other than that I'll just keep shoveling.
Friday, August 29, 2008
More Raku Glaze Recipes
Soldner's Flat Black Raku Glaze
Gerstley Borate 50%
Borax 50%
Add: Cobalt Carbonate 2%
Add: Red Iron Oxide 10%
Add: Rutile 10%
Soldner's Glass Red Raku Glaze
Gerstley Borate 50%
Borax 50%
Add: Red Iron Oxide 10%
Add: Copper Carbonate 5%
Soldner's Lava Raku Glaze
EPK 30%
Silica 20%
Soda Ash 50%
Its going to be another nice weekend so I'm planning on doing another wood firing. Last week when I was reading Clayart one of the topics was hillside kilns. I had remembered somebody telling me about a "coffin kiln." I think I'm going to try building one of these, a small kiln to fire some raku teabowls. Not sure how I'm going to build it yet. Will just have to dive into the project and get the fire lit. Will post photos next week.
Tuesday, August 26, 2008
Cast Iron Kiln
Well, here she is in action--My cast iron wood burning kiln.Looks good, but unfortunately the kiln did not reach temperature. Not a failure though. I learned lots.
First thing and perhaps the most important for me is that if I'm stoking the fire, I'm not doing it on my knees or bending over. I'm going to add another layer of cinder block to the base of this foundation and raise it up.
Another thing is that this kiln is too tight. By that I mean it didn't have enough air or draft. First of all I need to take a piece off the back of my door. The damper works great but there is a piece of metal that restricts airflow. With the back piece removed you'll be able to see right through the four holes and right into the fire box.
Perhaps most important of all I need to figure out how to put a mouse hole into the firebox floor. I needed air hitting the ember pile during this firing.
I only fired 4 teabowls in this test run. They were placed on a round kiln shelf supported by three fire brick. This really reduced the size of my firebox. There was one inch of clearance between the tops of the tea bowls and my fiber board roof. I also used a couple firebrick as a grate system to hlod the wood up off the floor.
When I rebuild this kiln I am putting the ware chamber above the whole firebox. I am thinking about making a small fiber-lined chamber and setting that over the round portion of the firebox. I am also going to stack brick around the exterior of the cast iron firebox because it puts out way too much heat. Looking for some suggestions. Help Wanted.
Saturday, August 23, 2008
New Kiln Project

Check this out. All kinds of new stuff for my wood burning kiln building project. One of my friends gave me a piece to an old coal burning furnace. Its cast iron, pretty thick and has a nice door. I am going to use this piece as it sits now. It is actually upside down from its original design but it looked to me to be a perfect fit for a small beehive type updraft kiln.
Plans are to use a layer of fine grog on top of the cinder block, level it out and then place a layer of medium duty hard fire brick on top of that for the floor of the kiln.
Next is to place the cast iron fire box on top of that. Not sure how I'll proceed after that. I'm kind of flying by the seat of my pants with excitement. I'm sure the cast iron will radiate a lot of painful heat so I'll probably layer up some red common brick around the exterior.
Not sure How I'll stack up the kiln ware chamber yet but I'll probably use a roof made of fiber.
My buddy also found some stainless steel pipe that will probably make good chimney material but I won't be using this big piece on this project. Better get to building. Weather is great today. Hope to fire tomorrow or Monday. Gotta run.
Friday, August 22, 2008
Soldner's Copper Red Luster Raku Glaze
Gerstley Borate 80%
Nepheline Syenite 20%
Add: Cobalt Oxide 1%
Add: Copper Oxide 3%
Thursday, August 21, 2008
Raku Crawl Glaze
47 Gerstley Borate
31 Magnesium Carbonate
19 EPK
4 Borax
According to the person that posted the recipe, "The lower you fire it the more crusty it is (cone 07 or 06) and it is called "Lichen" at that point. And as you go higher it will melt more andbecome a "Crawl" glaze (05) and higher it will be a "Bead" glaze."
Tuesday, August 19, 2008
Wood Fired Raku Tea Bowl

Here is one of the bowls from my last firing. The interior is glazed with Soldner's Clear and the exterior with Hawaiian Blue.
The interior has really cool light blue speckles in it. Don't know where they came from but they certainly add a lot to the bowl.
The exterior is a dry matt surface with subtly changing hues of blue. Normally in my gas fired fiber-lined raku kiln this glaze comes out a deep glossy blue.
Wednesday, August 13, 2008
Wood Fired Raku Kiln
Well, I finally built my brick raku kiln and fired it up this past Saturday. I only fired four tea bowls but the main purpose was just to get the kiln built and learn about kiln design and the science of firing. No doublt I learned a lot, but I still have a lot of learning left.I started with sixty hard fire brick, 10 soft insulating brick and about 50 red common brick. Inside dimensions were 13-1/2 inches wide and 16-1/2 inches tall. I had a small mouse hole that ran from front to back and 2 additional air holes on each side of the front of the kiln. For the roof I used a piece of 2-1/2 inch fiber board and used 4 soft brick to form a square exit flue in the back top portion of the kiln.
I was going to preheat the kiln with propane but found out at the last minute that both my propane tanks were empty so I started with a little bit of wood and some gas. I think I could have saved 3 hours of time had I preheated with propane. It takes a heck of a lot of time to heat those hard bricks and during this time, inbetween stoking, I decided to stack my red common brick around the outside of the kiln. This turned out to be a great idea as the exterior of this kiln, only one firebrick thick, became uncomfortably Hot. The second layer of brick really helped.
Another thing I learned was that a chimney really helps create draft and heat. Three hours into the firing I started to hear the slight roar of the fire. To see what would happen I stacked 3 more layers of brick on the chimney. Within minutes flame was jamming up and out of the chimney creating good draft and a nice roaring sound. I swear I could feel it as well as hear it. The addition of the chimney made it much easier to judge when to stoke more wood. When the flame and roar started to wane, it was time to add another piece of wood. You could actually determine when to stoke just by listening to the fire.
I also decided to experiment with a door in front of the stoke hole. I used a piece of broken kiln shelf. I learned quickly that seconday air holes are a must, but for this kiln a door is not neccessary.
I'm not sure if my mouse hole was designed properly as I frequently used a ram-rod and pushed it through the length of the kiln to keep air flowing through the embers. Will have to do some more research on that.
I used all kinds of different wood to fire this kiln. Some was cheap pine from wooden crates, some was old treated lumber from a deck, and some was a mix of good hardwood scraps from a cabinet shop. The wood was all cut into approximately 20 inch pieces and split into 1 to 2 inch widths. The kind of wood didn't seem to make much difference but the size did--the smaller width the better.
All in all it wa a good firing and a great learning experience. Got so fired up that I have stacked up another mini kiln of a different design. Need about 40 more brick to finish the chimney but hope to fire it this weekend. Stay tuned.
Tuesday, August 12, 2008
More Soldner Raku Glaze Recipes
Gerstley Borate 80%
Tin Oxide 20%
Soldner's Curdle Blue Raku Glaze
Gerstley Borate 50%
Borax 50%
Add: Cobalt Carbonate 0.33%
Add: Rutile 3%
Soldner's Copper Red Luster Raku Glaze
Gerstley Borate 80%
Nepheline Syenite 20%
Add: Cobalt Oxide 1%
Add: Copper Oxide 3%
Wednesday, August 06, 2008
My Studio

Well, this is it. Doesn't look like much but it has a lot of character. It also doesn't help that the picture was taken during our winter thaw, last April.
Its a nice little place about 10 miles from my house and about 10 miles from the city of La Crosse, situated out in a wooded coulee that overlooks a nice trout stream.
The building itself is quite large and used to be a woodworking shop that built everything from tables and chairs to cabinetes. My studio is the "Log Cabin Gifts" gift shop area. In the back is a mini lumber mill with all kinds big machinery that used to cut and mill big trees. All in all its a really interesting place and a perfect environment for a potter.
Cleaned and Sealed

The studio does have a lot of natural light, although the windows could use a good washing. The studio already had a nice concrete floor but I wanted to seal it to make future clean ups easier. It was bone dry and sucked up three coats of Thompson Water sealer.
There is a cast iron wood stove in the corner. It actually came off a train caboose. Will provide some good heat in the winter but I think the owner of the building is going to put in some better heating.
Still lots to do but it will be a fun on-going project.
Pots On The Rack

Just a few of my pots. I have about a dozen biqued tea bowls. I'll be firing these in my wood fired raku kiln. Still hoping to do that in the next few days but it probably won't happen till Saturday.
I also have some high-fired stoneware coffee mugs that I fired in a gas kiln at Viterbo University. I think I've already posted individual photos of the mugs on my flickr
site.
The platters on the lower shelf were all made using slabs of clay and wooden forms that I made. Its a terra cotta clay body and I'll probably just use a simple underglaze decoration around the edges and then use a clear glaze over that.
Tuesday, August 05, 2008
Soldner Raku Glaze Recipes
Soldner Base Clear Raku Glaze
Gerstley Borate 50%
Borax 50%
Soldner Bisque Slip--Halo
Gerstley Borate 14%
EPK 57%
Flint 29%
Soldner Red Raku Glaze
Gerstley Borate 50%
Borax 50%
Add: Copper Carbonate 10%
Add: Rutile 10%
I finally did stack my brick this past week. I've made a nice little wood-fire raku kiln. I was hoping to fire it Sunday but figured I didn't have enough wood to finish the firing. I collected some more wood that day and Monday morning but got caught in a serious Thunderstorm about 11:00am. Now its back to work. Will fire and post some photos as soon as possible.
Thursday, July 31, 2008
White Crackle Raku Glaze Recipe
White Crackle Raku Glaze
Gerstley Borate 80
G-200 Spar 20
Add: EPK 5
Zircopax 10
Tuesday, July 29, 2008
Kiln Building Project 2008

Before the flood of 2008 this was a nice concrete slab about 10 feet by 20 feet. After an hour and a half of shoveling, in 90 degree heat, I uncovered the now unlevel and cracked slab.
I was hoping to start laying cinder block and fire brick as soon as I unearthed the slab--Surprise, Surprise! Now I have to level the pad and I'm not sure how to do it. Should I use sand, should I use dirt, gravel? Best source to get this question answered, or at least get some great advice, is WoodKiln on Google Groups. This is a fantastic site for people interested in wood fired ceramics.
I came across this group by accident and joined the same day. After posting an introduction to the group I also asked for some advice about the kiln I was building and questions about the firebrick I wanted to use. Within a day several people welcomed me to the group and I had a lot of great information about my kiln and the firebrick I planned on using.
I was also steered to a site called The Potters Shop which is a great site for books on pottery. I was told to get the book "Laid Back Wood Firing" written by Steve Harrison. In this book he has the plans and how to's about building and firing the kiln that I am planning on building. I plan on ordering the book today and can't wait to start reading it.
Friday, July 25, 2008
Thursday, July 24, 2008
Kiln Building
Building the Bourry Fire Box for my Long Throat Kiln. This is just the begining and I'm getting a feel for what it is going to take to build my kiln. This is the front of the Bourry Box. The mouse hole is in the middle at the bottom and the secondary air hole is above that. I'm definately going to need some more brick.Front wall measurements are 36 inches wide by 25 inches tall. The interior of the firebox is 27 inches wide and I'm thinking of making it 22.5 inches deep.
Of the many diagrams of this type of firebox, most of them show the firebox door just above the mouse hole. For this kiln I am going to put it on the side of the firebox.
As for the firebox lid I was thinking about just using kiln shelves and kaowool fiber but now I'm thinking about using a cast iron hinged door from an old furnace. I'm not sure how I'll do it yet but I'd like to glue or attach soft insulated firebrick to the underside of the door. I think I'm also going to use 3/4 inch rebar rods instead of the hobs to hold up the wood.
I'm not sure what I'm going to do about the throat arch yet. I suppose the best route to go is use arch brick and then some castable refractory to square it off. But that costs money. Will have to ask some questions but I'm wondering if an arch is a neccesity. Maybey I can just use my standard bricks and build a square opening.
I'll be using Low Duty Hard Fire Brick that measure 9 inches by 4.5 inches by 2.5 inches. These are relatively inexpensive and I can buy them locally at a building supply company. Only problem is they only sell full brick and split brick. I'll pick up about 150 more brick next week so I can finish the fire box.
If all goes well I'll get the rest of my firebrick next week and finish the firebox on the weekend.
Tuesday, July 22, 2008
Yellow Crackle Raku Glaze
Yellow Crackle Raku Glaze.
Gerstley Borate 80%
Cornwall Stone 20%
Add: Vanadium Stain 306%
Small Wood Fired Kiln

Yes, from this small pile of bricks I'm building a small wood-fired kiln. In this pile is approximately 50 hard fire brick, 75 red common brick, and some pavers and some other crappy brick I can't use.
I am still short of materials though. I need 8 cinderblock, which I am going to use as a base to build the kiln on. Bringing the kiln up off the ground makes stoking the kiln easier on the back and knees. Also I've been told that the kiln will heat up faster, as the ground won't be sucking up all the heat.
I also need some sort of smoke stack which I am going to use as a chimney. I am thinking about a 4-foot section of cast iron pipe which will be inserted into a square sleeve of red common brick. It would also be nice to buy about 20 more hard fire brick. I can buy them locally for $1.39 per brick.
Other materials I have on hand that I'll be using are 10 insulated soft brick, some kiln shelves for the top of the kiln, and some kaowool fiber.
I'm building this in back of my studio on a concrete slab. The area is covered with a coregated tin roof. The 6-inch layer of mud and sand is a gift from the flood which I haven't yet shoveled and hauled away yet.
Stay tuned for pictures of the evolving kiln.
Thursday, July 17, 2008
Fired-Up
"Wood-fired Ceramics, Contemporary Practices" by Coll Minogue and Robert Sanderson. Here is an excerpt from the inside cover. "In Wood-fired Ceramics, Coll Minogue and Robert Sanderson briefly describe the development of the main types of wood-fired kilns used by today's potters. They then present the aesthetic aims, working practices and kilns of an international group of artists. Kiln-firing logs, clay, glaze and slip recipes, and kiln plans are also included. The work by over 60 artists, which illustrates the text, is representative of the diversity of styles in contemporary wood-fired ceramics. An Awesome book.
Anyway, I gotta build one of the kilns illustrated in this book. It is called a "long throat Bourry kiln" . Sandy Lockwood uses one and hers is based on a design by Stephan Harrison. The link I'm posting is actually Andrew Stewart's kiln but good photos of this type of kiln. I need to get some brick so I can start building.
Another book I recieved is "Ceramics of Picasso" by Georges Ramie. I've never been a big fan of Picasso's paintings but I'm really impressed by his pottery. Maybey I just think his artwork is better suited for pottery rather than canvas. Anyway, this book has 223 fantastic color illustrations.
Another neat item I came across is a product called Cerafiber Wet Pack. This might have a lot of kiln building and kiln repair applications. My friend John works with furnaces and boilers and he is the one who suggested it. It is a needled refractory fiber blanket that is packaged in a moist form. The flexible sheets can be easily cut and can be custom molded in complex shapes to a required size, shape and thickness. When the product dries, a hard rigid surface is created. Its refractory limit is 2400F. I contacted a company in Milwaukee, Wisconsin named Fire Brick Engineers Co. Price is $44.00 for a 2 foot by 3 foot sheet, one inch thick. Seems a bit spendy but it might have a lot of applications. When I get some extra money I'm going to have to get some and see what I can do with it. Better get going. Will try to post some more Raku glaze recipes tomorrow.
Tuesday, July 15, 2008
Alkaline Blue Raku Glaze Recipe
Alkaline Blue Raku Glaze
Frit 3110 70
Gerstley Borate 5
Flint 10
Soda Ash 10
EPK 5
Copper Carbonate 3
Friday, July 11, 2008
Kiln Diagram

I'm pretty excited about this new kiln building experiment. My original Raku Wood Burning Kiln, based on Nesrin Durin's design, was loosely assembled (and I mean LOOSELY). I'm going to tighten everything up and change it into a downdraft kiln consisting of four main components--the firebox, the stack area, the damper, and the chimney.
If all goes according to plan here is how it is going to work. Wood is stoked into the firebox through the stoke hole and placed on a grate to burn. The flame and heat will naturally rise and circulate throughout the interior of the kiln. The construction of this type of kiln will force the flame back downward to be exhausted at the bottom of the kiln and up through chimney, which in my case is a piece of stove pipe about 4-5 feet tall. A mix of firebrick and red common brick will be used to construct the main part of the kiln.
I'm going to load my pots from the top opening of the kiln onto the kiln shelf, and then use kiln shelves to seal up the top. I'm also going to use a piece of kiln shelf, as a makeshift door, to seal up the stoke hole when I'm not adding fuel to the fire.
I haven't thought about peek holes yet, and pyrometers cost money. So.... I'll just wait and see how things go.
Thursday, July 10, 2008
Raku Glaze Recipes
Gerstley Borate 80
Cornwall Stone 20
Cobalt Carbonate 6
Blue Patine Raku Glaze
Gerstley Borate 80
Bone Ash 20
Copper Carbonate 2
Tin Oxide 1.25
Cobalt Carbonate 0.25
Wednesday, July 09, 2008
Wood Burning Raku Kiln

Raku Glaze Recipes
Beads Raku Glaze Recipe
Magnesium Carbonate 31.25
Borax 25
Gerstley Borate 31.25
Flint 6.25
Zircopax 6.25
Black Widow Raku Glaze Recipe
Gerstley Borate 80
Nepheline Syenite 20
Black Copper Oxide 71.7
Wednesday, June 25, 2008
The 100 Year Flood, Again

Coon Valley Park.
Actually this photo was taken last August, (the first 100 Year Flood), a day after everything had crested and the waters started to go down. If you have never seen the park you might think it doesn't look too bad but there are spots that are 10 feet deep, or more, out there.
This year's flood, 28 counties in Wisconsin declared Federal Disaster Areas.
One Big Mud Pie

They say that this flood wasn't as bad as the 100 year flood just 10 months earlier, but Bad is bad and the mud is everywhere. This is the basement of my studio. The mud still wasn't completely dried up and cleaned out from last year.
Well, I guess its time to shovel and build and buy new kilns and other stuff.
So, for those of you wondering why I haven't been posting lately, it was mainly do to the depression after the flood. And, with no kilns or ware to fire I just haven't had much to say or post.
Hopefully soon. Until that time I'll try to keep posting my raku glaze recipes.
Friday, June 06, 2008
Raku Glaze Recipes
Since its Friday I'll post three Raku Glaze Recipes.
Aqua Luster
Borax 80
Whiting 8
Ball Clay 4
Zinc Oxide 4
Copper Carb. 3
Black Raku Glaze
Borax 3.22
Gerstley Borate 43.01
Soda Ash 21.51
Nepheline Sy. 10.75
Barnard Clay 21.51
Black Copper Luster
Frit 3134 75%
Nepheline Sy. 25%
Add:
Black Copper Ox.15%
Black Iron Ox. 15%
Thursday, June 05, 2008
Raku Glaze Recipe Of The Day
Gerstley Borate 80%
Nepheline Sy. 20%
Add:
Cobalt Carb. 0.50%
Chrome Ox. 1.0%
This glaze is just Soldner' Clear Raku Glaze with the addition of the colorants. It is a glossy deep green transluscent glaze. Pots placed in a post reduction can will produce nice subtle accents in the smoke filled cracks.
Wednesday, June 04, 2008
Alligator Raku Glaze Recipe
Gerstley Borate 8 cups
Bone Ash 2 cups
Copper Carb. 1/2 cup
Cobalt Oxide 1/4 cup
Trompe l'oeil

Tuesday, June 03, 2008
Rainbow Luster Raku Ash Glaze
Rainbow Luster Ash Glaze
Gerstley Borate 40%
Nepheline Sy. 10%
Wood Ash 50%
Add: Copper Carb. 10%
Barrel Fired Pottery

Another successful barrel firing. I think this is my fourth firing and I've had really good results each firing. This vase is approximately 13 inches tall and approx. 5 inches at the base.
The colors come from copper carbonate and WalMart brand MiracleGrow (plant food). The black markings are where the pot was laid into the bed of sawdust and of course the patterns of the colors are a result of the swirling flames inside the barrel.
This vase was burnished in its leather-hard state, bisque fired and then barrel fired. Once the vase was pulled from the ashes I wiped it clean and then buffed it up with a little bit of paste wax.
Monday, June 02, 2008
May's Barrel Firing

Not much left in the barrel but my pots and a two-inch layer of ash. I pulled these pots out of the barrel at eight in the morning, and they were still HOT. I started the fire at 2:00pm the day before. I only had 4 pots to fire this time around.
Next step is to wipe off all the ash and dirt of the pots and then apply a light coat of paste wax, which is buffed and polished to a high sheen.
Oh! Don't want to forget the raku recipe of the day. Today's winner is:
Crimson Raku Glaze.
Gerstley Borate 80, Nepheline Sy. 20, Kaolin 5, Zircopax 10, and Crimson Stain 15%. I got this recipe from Augusta State's web site.
Sunday, June 01, 2008
Raku Glaze Recipes
Reynolds Wrap Raku Glaze
Gerstley Borate 63%
Custer Feldspar 12%
Silica 12%
Ball Clay 6%
Barium Carb. 6%
Copper Carb. 12%
This raku glaze produces blues and dark greens with copper red flashings. If heavily reduced in both kiln and post firing this glaze could be called "polished copper."
Hawaiian Blue Raku Glaze
Gerstley Borate 80%
Bone Ash 20%
Add:
Copper Carb. 5%
Cobalt Ox. 5%
Tin Ox. 3%
This raku glaze is a nice glossy deep, rich, cobalt blue--A Brilliant cobalt blue.
I fired up my raku kiln yesterday. Wanted to try rakuing a big terra cotta pot I had. I also fired a couple tea bowls to fill the kiln. The terra cotta pot cracked right in half as I was removing it from the kiln. I think terra cotta might have a lot of potential. I glazed it with Soldners clear raku glaze. The tea bowls came out just fine. Tomorrow, or the next day, I'll post some photos of my last barrel firing. Stay tuned.
Friday, May 30, 2008
Raku Glaze Recipes
Also called Ferguson's Turquoise
Ferro Frit 3110 100
Tin Oxide 3
Copper Carb. 3
Bentonite 3
This is my favorite turquoise raku glaze because it can produce a lot of different results. To get a beautiful turquoise crackle I lightly reduce the pot, both in the kiln and in the reduction chamber. If heavily reduced you can get anything from polished copper to copper reds. Examples of this glaze can be found on my blog link "My Photo Gallery." One thing to keep in mind--This glaze will settle in the course of a few days and will harden like a brick in the glaze bucket. I try to make only what I need per firing.
Thursday, May 29, 2008
Raku Glaze Recipe Of The Day
Raku Patina Glaze
Gerstley Borate 1080
Bone Ash 270
Copper Carb. 75
Cobalt Carb. 75
This used to be my favorite raku glaze when I was attending Bemidji State University. It produces a semi-dry sandy textured surface that flashes, especially when quickly reduced. The container lid is lifted, fanned and resealed , "burped," to promote more brilliant flashing. Once a nice flashing is obtained , the pot is dunked in cold water to freeze the colors.
Wednesday, May 28, 2008
Barrel Kiln

Another barrel firing, long over due. This barrel is at my friends Jeri and Kerry's house just outside of Coon Valley. They live up on a ridge and it tends to be windy every time I want to fire.
Last Sunday was a perfect day, 75 degrees, sunny, and no wind.
I arrived at their house about one in the afternoon and once the pots and wood were loaded into the barrel, the fire was lit about 2pm.
At 5pm about 1/3 of the wood had been consumed and I filled it back up to the top of the barrel with more split hardwood, same kind of wood that can be seen in this photo.
At this point there is nothing more to do except crack a cold beer,or two, watch the fire, and wait till the next day when the fire has died out and the pots have cooled off.
Stay tuned for the results.
Thursday, April 24, 2008
Raku Tea Bowl

This tea bowl is a beauty. I love the soft gray and the complimentary iron red coloring.
The colors came from a slip applied to the clay when it was leather hard. When the slip dried to the touch I carved the grass motiff marks through the slip and into the clay body. Once the pot was bisque-fired I glazed it with Paul Soldner's Clear Raku Glaze.
The gray color looks just like the ancient Japanese Shino called Nezume Shino (mouse gray).
I found the slip recipe on the internet when I was researching Shino.
John Baymore Shino Slip: EPK 25, OM4 25, G200 Feldspar 20, Flint 20, Borax 5, Zircopax 5, Add: 9% RIO and 0.25% Cobalt Carb.
In the original post I found on the internet it said that the slip would turn shino you put over it blue and that it works well with "Linda's Pink Shino." I've had the recipe for a couple years but just recently found a post on Potters.Org from John Baymore regarding this recipe. He said there's no big magic in the recipe and in fact, it isn't even his recipe. He found it in the book Clay and Glazes for the Potter by Rhodes. Whoever the source, this is a great slip for cone 10 stoneware and looks to have a lot of potential for Raku fired pottery. I can't wait to try it again.
A couple other notes: I found a studio to rent about 5 miles from my house. I started moving stuff into it a couple weeks ago and fired up the raku kiln last weekend. If all goes well I'll move an electric kiln and a wheel into it this weekend. Also I've been invited to participate in the 2nd Annual Viroqua Empty Bowls Project. The first one was held last October, I believe. There is an organizational meeting tonight in Viroqua at the Drifless Cafe. Stay Tuned. More to Come.
Thursday, April 03, 2008
Temmoku Glazed Coffee Mug
I really liked the textured pattern on this mug and the Temmoku glaze really brought out the band of stamped impressions.The impressions were created using a square leather tool stamp before the handle was added.
Stonware, cone 10 reduction fired.
The interior of the mug was glazed with Viterbo Chun.
BSU Temmoku Glaze Recipe
Potash Spar 3368gr, Flint 2176gr, EPK 800gr, Whiting 1400gr, Red Iron Oxide 1000gr.
Viterbo Chun Glaze Recipe
Potash Spar 42, Flint 29, Whiting 19, Talc 4, Kaolin 3, Colemanite 3. Add: Bone Ash 2 and Red Iron Oxide 1.
Tuesday, April 01, 2008
Carbon Trap Coffee Mug

Its a good thing I took photos of my last batch of coffee mugs. I made about 30 and they're all gone. This was one of my favorites. I just like the earthiness of the glaze, it was a good size (10-oz.), and it just felt really good in the hands.
This mug was glazed with a base coat of Carbon Trap and then the Rim was dipped in BSU Gloss Turquoise. This kiln was not heavily reduced. Had it been, the carbon trap would have trapped jet black carbon into the glaze.
Carbon Trap Glaze Recipe, cone 10 reduction
SodaSpar 30%, Neph. Sy. 30%, Spodumene 30%, EPK 10%, Add: Soda Ash 5%
BSU (Bemidji State University) Gloss Turquoise, cone 10 reduction
Custer Spar. 5570gr, Whiting 1000gr, EPK 300gr, Barium Carb. 480gr, Zinc Ox, 200gr, Flint 750gr, Cobalt Carb 40gr, Chrome Ox 80gr.
Friday, March 28, 2008
What Goes Into Making A Mug?

I get this question everytime somebody picks up one of my mugs and this step by step process of what goes into making a mug is an adaptation from Sam The Cat Lady's description.
1. Drive to studio--1/2 hour each way.
2. Dig out tools, bats, water bucket and prepare to throw.
3. Weigh out clay for each mug.
4. Wedge (knead) clay.
5. Center clay on wheel and throw mug shape.
6. Remove from wheel and let dry 24-48 hours.
7. Clean up mess.
8. Put mug back on wheel and trim.
9. Clean up mess.
10. Hand pull the handle (basic shape).
11. Attach handle to top of mug and let dry approx 1/2 hour.
12. Hand pull handle to final shape/form.
13. Attatch base of handle to mug.
14. Let mug dry approx. 3-4 days. If mug or handle cracks, re-cycle clay and start all over.
15. Bisque fire mug in electric kiln approx. 12 hours.
16. Prepare glazes, mix and sieve as necessary.
17. Clean up mess.
18. Wax the bottom of mug so it does not stick to kiln shelf.
19. Choose glaze, design, and glaze mug.
20. Clean up mess.
21. Let mug dry thoroughly.
22. Clean up glaze drip marks and wipe bottom clean.
23. Fire mug to 2400F. This takes approx 12 hours.
24. Wait 12-14 hours to kiln to cool down to under 400 degrees.
25. Remove from kiln and inspect the mug. If mug is cracked or glaze turned out butt-ugly, start the whole damn process over.
26. If mug has miraculously survived to this point, hand sand the bottom baby-butt smooth so it doesn't scratch or mar any tabletop surface and put up for sale.
27. Last but not least, try not to attack the foolish person who innocently asks "Why does this mug cost so much?"
Thursday, March 27, 2008
Clayart Mug Exchange

Once a year potters from all over the world flock to NCECA (National Council On Education For The Ceramics Arts). This year its in Pittsburgh, PA. Potters who participate in ClayArt, a list serve for potters, get together at this convention and exchange a piece of pottery. For potters that do not attend the convention, ClayArt promotes the Mug Exchange for stay at home potters. This year my exchange partner is Penni Stoddart from London, Ontario. This is the mug I am sending to her.
Cone 10 stoneware coffee mug glazed with Viterbo Rutile Blue.
Viterbo Rutile Blue Glaze Recipe
Dolomite 790gr, Custer Spar 1500gr, Whiting 555gr, EPK 840gr, Flint 1315gr, Add: Rutile 400gr, Cobalt Carb. 50gr, Copper Ox. 30gr.
Tuesday, March 25, 2008
Mugs Mugs Mugs

Just some of the mugs that I've made the past month or so. Although I have neglected posting to my blog, I have not neglected my pottery.
Many of my new mugs have a lot of texture on the exteriors. I used found objects to stamp and impress images onto the surface as well as a couple different types of leather stamping tools. I also used the point of a can opener to create a nice triangular boarder around the mug.
I spent a couple hours yesterday glazing them. The glazes I used were Meloy White, Rutile Blue, BSU Temmoku, K-Shino, BSU Turquoise, and Viterbo Chun.
Once glazed they were loaded into the kiln and will be fired today.
Monday, January 14, 2008
Empty Bowls Project Update
Sunday, January 13, 2008
Foiled Experiment

Curses! Foiled Again.
I know it has been a while since I posted but bad weather delayed my last firing several times and then I just didn't update my blog.
Remember the tin foil saggar experiment with the cups? Well, here they are. I suppose it wasn't a complete failure, as I believe that I learned a lot from the firing.
First of all I didn't use heavy duty foil and probably not enough of it. When I shut off the gas and removed the lid from my raku kiln there wasn't much of a sign of the tin foil, just some ash residue around the base of the cups. I think this was because I fired the kiln too hot. I had another piece in the kiln, glazed with a Raku Clear Crackle glaze, and I fired the kiln till that piece was done. That piece is in the forground. I'll explain about that in a bit.
Anyway, with the cups, I think I fired too hot and did not use heavy duty tin foil. One artist I read about on the internet said she used a pyrometer and took her kiln to a certain temperature. I'm going to have to check back into that and perhaps modify my garbage can raku kiln with a port for the pyrometer. But, I see potential for the use of ferric chloride and cobalt sprays.
I wasn't too happy with either cup when I pulled them from the kiln and just tossed them into a snow bank. As they were sizzling I decided to toss a splash of ferric chloride on that cup just to see what would happen. I think some neat overlapping designs of verying intensity can be achieved this way. The cup that was sprayed with cobalt is a beautiful blue. I'm going to have to try both sprays again with pots that have been burnished.
Oh that broken piece in the forground, I accidently dropped it on my way to the car. Dang slippery ice! It was either the pot or me. Anyway. I was building several tall slab built vases and wanted to create contrasting paterns of glazed and unglazed surfaces. I loved the results, before I dropped the piece, but I had a bad problem with the vases cracking on the seams where I joined the pieces together. This was the only piece that made it through both the bisque fire and the raku firing, then I dropped it and broke it. I want to continue with these vases but am going to take a break (OOPS! Bad pun) from them for a while.
I have more research to do with the tin foil saggars, have a bunch of pots to burnish for my next barrel firing, and have a lot of exciting new projects to try. One of the projects is a wall sculpture based on a Mondrian painting. I also want to try making some terra sigillata to enhance my barrel fired pots, and I also have several other "secret" projects in my sketch books. Too much to do. We'll see what I can get done and in what order. Uffda!
Tuesday, December 18, 2007
Tin Foil Saggar Firing Notes

I don't know what the heck happened with this photo, but I'm not taking another one. Basically I just wanted to record what I'm doing so that if all turns out I'll remember what the heck I did.
These are two pieces of bisqueware that I have prepared for tin foil saggars. I didn't Throw the forms. These are just a couple of pieces that were going to be thrown out at the end of the semester. These cups had not been burnished.
The claybody is just a regular cone 10 stoneware, and probably bisqued to about cone 08.
The cup on the left was sprayed with a 50/50 mix of Ferric Chloride and water using a regular spray bottle. I think it was an old Windex bottle. The green markings are actually brush marks of Copper Carbonate and water, approximately 8 ounces water and 1 Tablespoon of Copper Carb.
The cup on the right was sprayed with a Cobalt Carbonate and water mixture, approximately 1 Tablespoon Cobalt Carb. and 8 ounces water. The same brush marks of the Copper Carb. and water were applied.
The next step is to wrap these pieces up in heavy duty tin foil. What I've read is that you crumple up the tin foil, uncrumple it and then wrap up the bique ware. In this case I am not adding any organic materials, although I might add some when it comes time to wrap them up. I'll keep notes. Stay tuned.
Many thanks to Aura Lee from Oregon. She has been reading my blog and also said she enjoyed reading it. Yeah! That's what I'm talking 'bout. Anyway she asked about my red raku glaze. I think the one she inquired about was a teabowl posted in Jan. 2007. I called it "Cabernet Red." No secrets here.
Cabernet Red Raku Glaze Recipe: as strange as it sounds it is approximately one handful of Burgundy Mason Stain to 3/4 of a plastic ice cream bucket of Soldners Clear Crackle Raku Glaze. I think I mixed a 2,000 gram batch of the clear, but it was about 3/4 full--80% Gerstley Borate, 20% Nepheline Syenite.
And once again, my raku firing has been delayed again. I usually get pretty fired-up when it comes to Raku-ing in the winter but lately it has been windy and cloudy. Oh! And cold too. I think the sun is supposed to come out today. Maybe today is the day.
Saturday, December 15, 2007
Building A Raku Kiln

Once again, studying my site meter, I noticed that there is a huge search demand for people interested in building a garbage can raku kiln. So, I thought I'd just let people know if they hadn't found it on my blog that they need to search my archives for January and Febuary 2006.
This is an older photo of me firing up my first kiln but everything will look the same today when I fire up my new raku kiln, except maybe the sun. At least I hope to fire it up. Right now its 10 degrees and overcast.
I'm anxious to try tin foil saggers so today I am going to run around town and pick up some supplies. I haven't been able to find any Ferric Chloride but I was told to try etching solution, which I can buy at Radio Shack. I'm also going to try to find some seaweed (seaweed in La Crosse?????). Anyway I have some shopping to do.
I also have two vases to fire that I had previously glazed with Soldner's Clear Crackle. Lots to do. Don't know how much gas I have in my 80-pound tank????
Friday, December 14, 2007
Rutile Blue Glaze

I've been scrutinizing my site meter information a lot lately and I noticed that somebody came across my sight by doing a google search for Rutile Blue Glaze. Well, if you're still searching maybe you'll find this recipe.
Rutile Blue Glaze
Cone 10 reduction
Dolomite 790, Custer Feldspar 1500, Whiting 555, EPK 840, Flint 1315, Add: Rutile 400, Add: Cobalt Carbonate 50.
This is the recipe used at Viterbo College in La Crosse, WI. In the future I'll try to include the glaze recipes in the photos I post.
Upcomming projects: Tin Foil Saggars, more raku, and more barrel firing.
Thursday, December 06, 2007
Pots by Jeff
Pots by Jeff. A group photo.I don't have a favorite one. I like them all. I like the fact that each pot is "one of a kind," and that each pot tells its own unique story of how the fire created the markings and designs. Photos don't do these pots justice. These pots beg to be picked up. They really need to be touched and studied to understand the full story of their creation. Only then is their full beauty revealed. That's not a bunch of crap either. That's the way I feel and what I believe.
Tuesday, December 04, 2007
Barrel Fired Vase

This vase is approximately 14 inches tall and I didn't try any crazy experiments with this one. The only thing I did was fill the interior of the vase with sawdust and laid the pot on its side in the bed of sawdust.
Once I placed all all the pots in the bottom of the barrel I sprinkled an equal amount of MiracleGrow and Copper Carbonate around the pots. I then placed small pieces of scrap lumber around the pots and then started piling on the wood, smaller then heavier pieces till the barrel was full.
Once the fire was lit and the wood started to turn to coals and start dropping to the bottom of the barrel I began adding more pieces of split hickory to the barrel. I probably added about 10 pieces total, maybe one piece every 10-15 minutes. From that point on I just let the fire die down and out.
Twentyfour hours later there was only about 3 inches of ash on the bottom and the pots were still hot. I had to pull them out with leather gloves. I didn't know what to expect till I scrubbed the burnished pieces with some water and a green scrubby pad. Once I scrubbed them off I applied a small amount of Minwax Paste Finishing Wax and buffed each pot to a high glossy finish.
Saturday, December 01, 2007
Barrel Firing Notes

Another experiment from my last barrel firing. This is the vase that I wrapped steel wool around the bottom third of the pot.
Before placing the pot in the barrel I filled the interior with sawdust. My professor at Viterbo University, Gerrard Ferrari, commented that he preferred a black interior to compliment the colors on the outside of the pot. My previous pots were white and light gray on the interiors.
Once the vase was filled with sawdust I placed it in the barrel right side up in the sawdust at a slight angle. Most of the steel wool was surrounded in the bed of sawdust.
I thought the steel wool would produce some really interesting patterns on the pot and I also thought the patterns would produce blacks and grays--black where there was air between the pot and the wool and gray where the wool was pressed against the pot. Well, it didn't turn out that way.
The reddish line markings one third up the pot is where the steel wool ended. I'm thinking perhaps the steel wool created air pockets that produced the pinks and reds and just above that is the black produced by the top layer of the sawdust. I'm happy with the pot and will continue to experiment with the wool.
Thursday, November 29, 2007
Barrel Firing Notes

Remember the wire wrapped bottle? Well here it is after the firing.
You can see the vertical lines left by the 17 gauge wire. The wire was loosely wrapped around the bottle so I imagine that if tightly wrapped you will get more pronounced lines. The wire also did not melt during the firing and had to be unraveled off the bottle after it was pulled from the ashes.
I also wrapped a line of heavy gauge solder around the neck of the bottle and near the base. The solder did melt and there was no trace of it after the firing. I think the solder has some interesting potential.
On the back side of the bottle where the solder was wrapped around the neck there were small patches of metalic maroon and a couple shades of blue and purple. It was a small patch but it was only one strand of solder. In any case I think the solder might produce some real interesting and beautiful results.
I did a little bit of research and solder has a melting point of about 360F and most retail solders contain approximately 60% tin and 40% lead. Perhaps it is the tin that produced the metalic flashes.
This bottle was not burnished so it doesn't have the nice glossy marble look, but the flame patterns and the contrasting colors make it extremely interesting.
Wednesday, November 28, 2007
Barrel Firing Notes

Results are in from the Banana Peel Experiment.
This was the only pot that came out of the barrel firing that had red on it. I am attributing the red to the banana peels for two reasons: one being it was the only pot in the barrel to have red color markings, and two being the manner in which I draped the peels over the pot. On the inside of the pot the red markings go down about 1/3 of the way and then stop, probably because that is the way I draped the peels.
The black marking on the front is a result of how I placed the pot in the barrel. Before loading the pots into the barrel I dumped about 8 inches of sawdust into it to create a nice soft bed to place the pots. This pot was laid into the sawdust at about a 45 degree angle, the black area being the part that was in direct contact with the sawdust. This area got the least amount of oxygen during the firing and produced the jet black color you see.
A couple other things to note about this pot is the rough, dry matte surface, and the banana peel shadow on the bottom side of the pot. Since the pot was not burnished prior to the bisque firing, it produced the matte surface. I will post a photo of the banana shadow on my Flickr site. You can get there by "My Photo Gallery" link on the right hand side of this page.
Anyway, I'm really pleased with my 3rd barrel firing and especially the banana peel experiment. I'm still going to have to try it again, but all I can say is "Bring on the Chicken bones!"
Tuesday, November 27, 2007
Barrel Kiln Notes

Barrel Firing No. 3

Yipee! Yipee!
Finally. After weeks of rotten windy weather and set backs of some sort or another I was able to light up my 3rd barrel fire. Although, this one almost didn't happen as well.
I wanted to light it up on Friday afternoon, but too much wind. Wanted to light it up Saturday, but too much wind. Sunday was a great day so I jumped in the jeep for the short drive to the kiln and my truck died. Just died. Conked out going up the Coon Valley hill and I couldn't get it started. Had to get it towed back into town. Needless to say I was pissed off and bummed out. It really seemed like I was never going to get this barrel lit.
Don't know what happened to the truck but it started up the next day and although it was a little bit windy, I was going to light this barrel kiln.
I got a good load of hard hickory wood from my friend Tom but it was a bit green. Dang near ran out of matches before I got this thing going, but I got it going. I started it about 1pm and after feeding it for about an hour and a half let it burn down to coals.
Stay tuned for the results. Hope to have them posted tomorrow, Wednesday at the latest.
Barrel Firing Notes

More barrel firing notes.
I have no idea what effect the banana peels are going to have on this pot. Somewhere I read that chicken bones and bannana peels produce interesting colors so I laid banana peels over the rim of this pot and secured it in place with some 17 gauge wire.
We'll see what happens.
Tuesday, November 20, 2007
Barrel Firing Notes

Saturday, November 17, 2007
Barrel Firing Notes
I'm searching for new colors and new effects on my barrel fired pots. This will be barrel firing number three. Here is my first experiment.No, my pot hasn't grown a beard.
I used #3 steel wool that I cut open and stretched out to wrap around the lower third of this pot.
To help secure the wool in place I used some copper speaker wire that was stripped free from its insulation.
Barrel Firing Notes

I wrapped some masking tape over the steel wool to compress it to the pot. But after the fact, I realized that the tape is going to catch fire, burn up, and the steel wool is still going to be loosely wrapped around the pot.
I'm thinking about laying this pot down in the sawdust so that half of the form is buried in the sawdust and the other half exposed to the fire and coals.
Once again, we'll see what happens.
Tuesday, November 13, 2007
New Forms

I cranked out some new forms this past weekend. Basically bottle forms and vases for my barrel firing.
I managed to burnish four of the vases this weekend but was unable to bisque fire them. I was hoping to light-up the barrel kiln, but as usual it didn't happen as scheduled. Its going to happen next weekend, weather permitting.
These bottles and vases are about 12-13 inches tall, except for the shorty up front.
The two forms I like the most are the rounded bottle form with the flattened top and the bottle form just to the right of it.
Back to burnishing. I did briefly describe burnishing in a July 2007 Post but never really explained why I put the laborious time into getting a high satin gloss surface on the pots before firing them in my barrel. I suppose the main reason I burnish the pots is because I like the polished glossy surface when the pieces are pulled from the ashes. Burnishing is like polishing. It rearranges and compresses the clay surface particles and creates a smooth even texture that accepts the colored markings from the fire much more dramatically.
Burnishing my pots can take between one and three hours of rubbing and rubbing in very small circular motions with the back of a metal spoon. Another method to get this smooth glossy surface is by applying a layer of Terra Sigillata to the pot and then buffing to a high sheen using a soft cloth. Terra Sig is another new uncharted territory for me, but one that I'll get to.
Currently I am more interested in discovering what types of organic and inorganic materials create what colors during the firing. Not to mention, I am also looking for appealing pottery forms that compliment the entire process of "Barrel Firing."
Friday, October 26, 2007
Barrel Fired Vase

Another Saturday and not enough time in the day to get all the things done that I'd like to. Oh, I should mention that I posted the photo of the vase yesterday but didn't have time to write anything. Anyway.....
First thing is to make clay. I need some clay for throwing and I need a batch of heavily grogged clay for my barrel and raku firing.
Speaking of witch (it is Halloween, kinda), I need to start working on my new raku kiln. The burner system was finished last weekend and a photo posted last week. Today I need to line a garbage can with fiber. I also need to make some ceramic buttons to hold the fiber in place.
If that isn't enough for the day, I need to throw some more pots. And, before I forget.....
This is a vase from my last barrel firing. It's about 8-9 inches tall. I like it. Pretty much the whole vase is this marble peachy rosey marble color, except for the black spot in the front. That was where I laid the piece down in the sawdust.
I haven't heard anything about how well the Empty Bowls Project did in Viroqua. I only stopped for about an hour. Lots and Lots of bowls and a good crowd of people. As soon as I get word about the final results of the event I'll get them posted. Enough for now, time to get muddy.
Tuesday, October 23, 2007
Barrel Fired Tea Caddy

Monday, October 22, 2007
Raku Burner System
New and improved Raku Burner System.This was the base of one of those deep-fried oil turkey cookers. The legs were unscrewed from the top ring and the ring was lowered about four inches. I used vise-grips to clamp the legs back in place and then drilled new holes into the shorter legs. I used the original screws to secure the legs back onto the top ring. Next I bent down the legs to serve as supports for the kiln.
The burner came from my old kiln. The only difference is that a 90 degree brass elbow was screwed onto the burner to create an updraft burner.
The turkey burner was removed from the unit and 3 inches were cut out from the mounting cross member. The burner was then slid right into place.
Next step is to line another garbage can with some fiber.
The Death of Rusty Raku
Poor 'Ol Rusty is done.Sometime in the past week some dirty little critters sqweeked through the plugged up burner port and chewed up the fiber.
This Fiber-Lined Garbage Can Raku Kiln was pushing two years old and has held up well, being exposed to all the Wisconsin elements.
I'm not sure how many firings I did in this kiln, but it was a heck of a lot.
Now its on to the next kiln design. Stay tuned.
Thursday, October 18, 2007
Empty Bowl Project Viroqua, WI

Saturday Oct. 20th from 4-9 pm the Viroqua Empty Bowls Project will be serving Soup and Bread to combat world hunger and poverty, and to teach about the connection art has in society.
Local area potters have made the bowls and donated them to the project. Participants in the event are asked to make a minimum donation of 20 dollars. When the meal is done, you get to keep the bowl. The diners can also choose where they would like their donations to go: local food pantries, international hunger relief, or the Empty Bowls Project.
Here are some of the bowls I am donating. The front left and right bowls are glazed with BSU Temmoku and the rims were dipped in Mamo White. The texture comes from porcelain slip which is brushed on the bowl when the bowl is still wet and on the potter's wheel.
The other bowls I used a combination of BSU Temmoku, Wax Resist, and Oxblood. The kiln was not heavily reduced but flashes of red mark each of these bowls.
Tuesday, October 16, 2007
Rutile Blue Tumblers

More tumblers, different glaze. This glaze is Viterbo's Rutile Blue. Once again those are my paw prints on the bottoms of the cups.
A Gift to Josh B., Meteorologist, WKBT La Crosse. Cheers!
Upcoming projects/events......I'm still waiting to light the barrel kiln. Weather forecast is good for next weekend. Will also fire-up the Raku kiln as well.
I've also just recently added the 500th HighFire Glaze to my Glaze Data Base. I bet by the time I'm done, I will have 1,000 glaze recipes
Also coming up is the Empty Bowls Project in Viroqua, Wisconsin. Saturday Oct. 20th, 4pm to 7pm. More info and photos coming about this one.
Thursday, October 11, 2007
More Tumblers

More Tumblers, or flat-bottomed cups without handles or feet.
I really like this glaze. The base glaze is BSU Temmoku. Once that is applied I drip hot wax over the cups (A technique called wax resist). Then I apply a coat of Oxblood glaze over the Temmoku. The Oxblood glaze runs off the wax revealing the base glaze.
The interior is glazed with Mamo White.
Anyway, I like this combination of glazes because it reminds me of tiger stripes. This combination of glazes can also produce two entirely different results. I have found that if I load the kiln with lots and lots of Oxblood glazed pieces, the Oxblood will produce brilliant deep reds when heavily reduced. But if I only have a few Oxblood glazed pieces in the kiln, I end up with the glaze you see here.
