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Tiki Central Forums Creating Tiki Other Crafts MadDog Mike's Platterful of Pupule - Kiln Geek Info
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MadDog Mike's Platterful of Pupule - Kiln Geek Info
MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8817
From: The Anvil of the Sun
Posted: 2009-06-12 12:48 pm   Permalink

This is almost like a live webcam

A layer of straw and a liberal sprinkling of Copper Carbonate & Iron Oxide.



More straw, some assorted wood and some fire



Last time I used a buttload of hot-burning hardwood in the fire, I'm thinking that may have contributed to the breakage. This time I used some soft palm wood that will burn much cooler and not as long. But will it burn hot enough to vaporize the chemicals? Time will tell.

Here's another smoke project I'm working on today, hmmmm, wonder what it is?


_________________
ATTENTION MEMBERS! If you take the TC War Canoe on a head hunting party, be sure to remove the decapitated bodies before returning it. See club bylaws for more details


 
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mp
Tiki Socialite

Joined: Mar 12, 2009
Posts: 458
From: Nor Cal
Posted: 2009-06-12 6:16 pm   Permalink

Your going off Mike! You've got killer drive. Love the tiki bottle.

 
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MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8817
From: The Anvil of the Sun
Posted: 2009-06-13 07:44 am   Permalink

Thanks Mikel. Lots of drive but so far not so much luck (or is it skill?)

The promise of glory



And the bitter taste of defeat



Both plates broke. The mug didn't break but it didn't really pick up any color either. They say you have to break some eggs to make an omelet... Back to the drawing board. I made the plates thicker and made the fire cooler but it didn't help. I guess I'll pick up some Raku clay and try again. The mug I'll wrap with paper towels soaked with the chemicals and dried, then wrap it with foil to keep the chemicals in contact the mug.

At least the Moai Bottle mold seemed to work out. Now I'll have to wait a week for it to dry so I can try it out. (I hate waiting!)

And the Chinese ribs were great I did a Chinese Five Spice dry rub on them, smoked them until the meat was falling off the bones, and glazed them with Char Siu Sauce (Chinese BBQ Sauce) Ahhh, smoked pork - the food of the gods.
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ATTENTION MEMBERS! If you take the TC War Canoe on a head hunting party, be sure to remove the decapitated bodies before returning it. See club bylaws for more details


 
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Cammo
Tiki Socialite

Joined: May 18, 2006
Posts: 1974
From: San Diego
Posted: 2009-06-13 09:56 am   Permalink

The washing machine as a bubble-killer is a FREKIN' GREAT idea!!!!

Ribs are the ultimate argument to vegetarians - if you're not supposed to eat innocent big-eyed cute animals, how come they taste so good with Char Siu Sauce on 'em? Huh? Huh, ya skinny limp-necked vegan? Huh???

And I don't think the breakage has anything to do with the intensity of the heat, I think it's the ramp-up. You gotta build up the heat slow, Joe. I have no suggestions as to HOW to do it, but I remember some raku is simply done at the beach in a big pit. It can't be that hard. First year community college pottery hippies do it all the time. Are you using the right clay??

Hey, I think Big Mikester ("MP" on TC) is a glaze/firing monster pro and could advise you...


 
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Queen Kamehameha
Tiki Socialite

Joined: Oct 21, 2003
Posts: 1413
From: So Cal
Posted: 2009-06-13 2:44 pm   Permalink

Mike, the mug, the plates, wow, you really have found your medium. Once you get the firing down we wont be able to keep up with your art!


Amy


 
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4WDtiki
Tiki Socialite

Joined: Aug 03, 2004
Posts: 1968
From: Omao, Kauai
Posted: 2009-06-13 4:25 pm   Permalink

Mike, if you want to try it a different way, here's how I used to do it.

Take the piece directly out of the kiln when it reaches cone 06
(or whatever cone you're firing to, we used 06 glazes)
using raku tongs and gloves
and place it it one of these.
The can has the straw inside like you've been doing. It'll burst into flames as soon as you place the piece in.
Slap the lid on tight, and let it smoke.
In a few minutes, take it out, it's done!
Some fresh straw and you're ready for the next piece.


 
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MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8817
From: The Anvil of the Sun
Posted: 2009-06-13 6:11 pm   Permalink

Thanks for the encouragement guys. Raku and smoke firing are actually 2 different critters. Raku ware is glazed, put into the kiln until the glaze fuses then pulled out and placed in a closed container full of organic material (grass, paper, leaves, etc) Raku is characterized by cracks in the glaze that absorb the black carbon from the burning organic matter. Since the fire is snuffed out by closing the lid, the resultant reduction atmosphere (no oxygen) sometimes causes a metallic or iridescent sheen to the glaze. MP has done some awesome Raku pieces, his Green Marq is a classic example




Smoke firing uses bisqued but unglazed ceramic, usually burnished when the clay is leather hard. It is put in a barrel or pit with organic materials and/or chemicals and lit on fire. The porous clay absorbs the smoke in swirls and flashes. Different organic materials and/or chemicals leave different colored marks on the ceramic.


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ATTENTION MEMBERS! If you take the TC War Canoe on a head hunting party, be sure to remove the decapitated bodies before returning it. See club bylaws for more details


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4WDtiki
Tiki Socialite

Joined: Aug 03, 2004
Posts: 1968
From: Omao, Kauai
Posted: 2009-06-13 6:31 pm   Permalink

Hmm, this:
"Smoke firing uses bisqued but unglazed ceramic, usually burnished when the clay is leather hard. It is put in a barrel or pit with organic materials and/or chemicals and lit on fire. The porous clay absorbs the smoke in swirls and flashes. Different organic materials and/or chemicals leave different colored marks on the ceramic."
describes what I was doing pretty accurately, right down to the burnishing. Most of my stuff had no glaze, some had minor glaze highlights.
I mainly did the process to get the great carbon-black color on (in) the clay.
I could post a pic if you wouldn't mind the the hijack!
I just think you should consider a test of my quick way, it might do what you're trying to accomplish.
I did use some oxide solutions as 'glaze' to get a oil-film-on-water effect, which seems similar to your pic above. Maybe try applying it before a second fire, then use my process.
Mike, sorry if I'm coming across as pushy, but I just think the look you're after was the look I was getting.



 
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MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8817
From: The Anvil of the Sun
Posted: 2009-06-13 7:07 pm   Permalink

Bill, you're spending an awful lot of time over here in "Other Crafts", don't you belong in "Carving"?

You're not being pushy at all and I would love to see the pics you are talking about. It's not a hijack, it's education! I love that the artists and craftsmen on TC are so willing to share the wealth of their knowledge. I've got a book on smoke firing so I know it can be done, I think I'm using the wrong clay. I did a successful smoke firing a few months back but it was with Soldate 60, a clay with more thermal shock capability than the EM347 I'm using.



Now I'm looking for the same effect but with red/tan/brown colors instead of the grays.

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ATTENTION MEMBERS! If you take the TC War Canoe on a head hunting party, be sure to remove the decapitated bodies before returning it. See club bylaws for more details


 
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teaKEY
Tiki Socialite

Joined: Nov 09, 2004
Posts: 3683
From: The thumb !
Posted: 2009-06-13 7:12 pm   Permalink

the only time I did Raku was the first time I ever took a clay class. It was the best glazes that I ever got (with stupid ease) and I have been disappointed with glazes ever since.

We bisqued fired and then added the glaze to were you wanted and then we had an old Kiln (shell) with maybe a hole and fed it propane with a blow torch type set up (maybe a mixing with O2). The pieces just got red hot. I mean this stone clay glowed red in the kiln and with leather gloves and tongs pulled out the hot pieces and threw into a dig pit with different things. Leaves, paper, sawdust, and motor oil. Covered with trash can lid. I remembered you even drop into cool water like a blacksmith does with steel with I would have figured would shocked it to pieces.
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20+10 =30yo

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4WDtiki
Tiki Socialite

Joined: Aug 03, 2004
Posts: 1968
From: Omao, Kauai
Posted: 2009-06-13 7:16 pm   Permalink

Okay, I'll take a pic tomorrow.
I'm no expert BTW, I just took a ceramics class at SD Community College 19 years ago.
I did eventually get my own kiln, and "raku-ed" at home. It's long gone, however.
Now I'm waiting for that Clysdalle guy to get a house with 220 in the garage!


 
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Cammo
Tiki Socialite

Joined: May 18, 2006
Posts: 1974
From: San Diego
Posted: 2009-06-13 8:32 pm   Permalink

"Raku ware is glazed, put into the kiln until the glaze fuses then pulled out and placed in a closed container full of organic material (grass, paper, leaves, etc) Raku is characterized by cracks in the glaze that absorb the black carbon from the burning organic matter. Since the fire is snuffed out by closing the lid, the resultant reduction atmosphere (no oxygen) sometimes causes a metallic or iridescent sheen to the glaze. -M.D.M."

Gad, did you eat an encyclopedia?

So Mr. Smarty-Book-Learnin'-College-Boy, why is yer stuff all cracked up?!

Just kidding. Actually, it's way more interesting when experiments don't work, then you know you're doing interesting stuff. By the way, the technical term for all this is "Trial By Fire".


 
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Iokona Ki'i
Tiki Socialite

Joined: Nov 14, 2008
Posts: 816
From: SoCal
Posted: 2009-06-13 8:38 pm   Permalink

Bummer Mike! And I thought velvet was difficult
and unpredictable. Keep pushing the envelope brother.
You'll master it soon!
MMMMMMMMM...Chinese BBQ ribs.


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Velvets by J. Sallin


 
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Bowana
Tiki Socialite

Joined: Nov 10, 2006
Posts: 1183
From: La Mesa, CA
Posted: 2009-06-15 9:49 pm   Permalink

Quote:

On 2009-06-10 12:37, MadDogMike wrote:
I threw a shoe in the washing machine and used it on the spin cycle as a vibration table to get the bubbles out of the plaster







Evil genius.
_________________

That's my story and I'm sticking to it.


 
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MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8817
From: The Anvil of the Sun
Posted: 2009-06-15 10:28 pm   Permalink

To;
teaKEY, thanks for the advise
Cammo, thanks for the harassment
Jason, thanks for the understanding
Bowana, thanks for the diagnosis
Bill, WHERE'S MY PICTURE!!!???

Going to put the smoking on the back burner for now. Will pick up some stronger clay tomorrow.

The mold for my little Moai Bottle looks like it worked out, but I'm afraid I may have made it too small. At 7 inches tall, I estimate it will only hold about 9 ounces. The big question is; did I do the math right? Will it shrink with firing enough that the spout fits snugly?



I tried something new with this mold, any mold makers out there can please give me an opinion. Instead of making a 3 piece mold to make the foot at the bottom, I made a 2 piece mold with a flat bottom. As soon as I pulled from the mold and while the clay was soft, I gently pushed the bottom in to create a foot. Is this legit?


_________________
ATTENTION MEMBERS! If you take the TC War Canoe on a head hunting party, be sure to remove the decapitated bodies before returning it. See club bylaws for more details


 
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