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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
hiltiki
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Joined: Jun 10, 2004
Posts: 3957
From: Reseda, calif.
Posted: 29 days ago; 09:57 am   Permalink

OOOh, this is exciting, cant wait to see the final project

 
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cy
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Joined: Mar 10, 2011
Posts: 1432
From: Gresham, Oregon
Posted: 29 days ago; 10:45 am   Permalink

Your snake hut is bitchin' MadDog!

 
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danlovestikis
Grand Member (8 years)  

Joined: Jun 17, 2002
Posts: 7044
Posted: 29 days ago; 6:55 pm   Permalink


This is going to be excellent. Wendy


 
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uncle trav
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Joined: Apr 27, 2005
Posts: 2256
From: Kalamazoo
Posted: 28 days ago; 12:45 pm   Permalink

The hut looks great Mike. I like all of the detailing. Keep up the good work and have a good weekend!
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swizzle
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Joined: Jun 03, 2007
Posts: 1180
From: Melbourne,Australia
Posted: 28 days ago; 6:32 pm   Permalink

Snake Hut is looking good Mike and i would have worked on 10% shrinkage for the glass holder. You can always wrap some paper towel around the glass to take up any movement.
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hang10tiki
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Joined: Jul 18, 2010
Posts: 7377
From: Las Vegas
Posted: 28 days ago; 9:52 pm   Permalink

Snake the hut looks kool

 
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MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8807
From: The Anvil of the Sun
Posted: 27 days ago; 7:12 pm   Permalink

Thanks guys The snake hut is on temporary hiatus while I figure out glazes and place an order.

Did have some minor success on my Krakatoa mug. I found a glass that was slightly smaller that fit inside ceramic sleeve. So glazed and fired it. But I overfired it a bit and and washed out the reds and yellows. Swizzle, that EM347 clay is listed at 5% shrinkage for Cone 04. I made it about 6 or 7% bigger and it wasn't quite enough


But it's a bit too big in diameter and clunky, so I started a new prototype. I used a Catholic prayer candle for the glass, taller and skinnier. I'll try not to overfire this one

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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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hang10tiki
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Joined: Jul 18, 2010
Posts: 7377
From: Las Vegas
Posted: 27 days ago; 8:09 pm   Permalink

Ummmmm
Wait
Say a prayer
Light the candle
Take a drink n hope your don’t burn your face

Sounds risky



 
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Will carve
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Joined: Apr 06, 2011
Posts: 910
From: Ft. Lauderdale Fl.
Posted: 26 days ago; 04:15 am   Permalink

Hot stuff !!!

 
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MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8807
From: The Anvil of the Sun
Posted: 11 days ago; 7:39 pm   Permalink

SLow progress on the Snake Hut. Roof glazed and fired, starting to glaze the hut.


One of the future inhabitants of the Hut


Another Krakatoa Mug failure

I tried something new, I broke up the ceramic like mosaic and glued it to the thinner (prayer candle) glass. I like the way that technique worked out. The mug was smaller and feels better in my hand. But it's too small for the LED ice cube to fit and that is intregal to the design


 
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hang10tiki
Tiki Socialite

Joined: Jul 18, 2010
Posts: 7377
From: Las Vegas
Posted: 11 days ago; 9:29 pm   Permalink

Lookin good Bruddah

U my favorite snake charmer





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hiltiki
Tiki Socialite

Joined: Jun 10, 2004
Posts: 3957
From: Reseda, calif.
Posted: 10 days ago; 12:23 am   Permalink

Love the little baby skulls,hehe.

 
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danlovestikis
Grand Member (8 years)  

Joined: Jun 17, 2002
Posts: 7044
Posted: 10 days ago; 07:24 am   Permalink


hang10tiki that's so wonderful. It has the "feel" of MDM's soul.

MDM you have the fun ideas in the brain, thanks for pouring them out for all of us to see. You rock(y)!

Wendy
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Philot
Tiki Socialite

Joined: Apr 04, 2003
Posts: 223
From: The armpit of Florida
Posted: 10 days ago; 09:56 am   Permalink

That Krakatoa looks fantastic!
I like the way you're bringing all the separate elements together to create the desired effect.





 
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MadDogMike
Grand Member (8 years)  

Joined: Mar 30, 2008
Posts: 8807
From: The Anvil of the Sun
Posted: 4 days ago; 09:41 am   Permalink

Thanks guys, I'm going to try that Krakatoa mug at least one more time and try to "perfect" it.

Here's little useless kiln geek information that someone may find interesting. Kilns fire to a "cone number". Starting with Cone 022 (also designated ^022) as the coolest and going up through ^14 as the hottest. ^04 is hotter than ^06, and ^4 is hotter than ^04. There is no ^0, the next step from ^01 is ^1. (..., 03, 02, 01, 1, 2, 3, ...). Lusters like real gold trim fire fairly cool (1000 degrees) at about ^018, low fire glazes are usually ^06, low fire bisque usually ^04, mid-fire clays about ^4-7, and high fire clays and porcelains at ^10-14. There is a temperature range for each cone but it also depends on the speed that it reached the temperature. The gold standard that has been used for 100 years is Orton Cones, a composite material that melts and bends over when the right time/temperature combination has been reached. You can see the 5th cone has over-fired (gotten too hot), the 4rd is fired just right so that the tip is just touching the floor, 1-3 have not gotten hot enough.


And why do I care? As many of you know, I am a hobby ceramicist. I make mostly to give away and don't really sell anything so ceramics are an expense for me, not a source of income (just a fact, not a complaint). So instead of a fancy, big, new-fangled kiln, I have an little old busted up one that works just fine for me My kiln originally had a Kiln-Setter that would turn the kiln off when it reached proper temperature but it stopped working long ago (I have the parts to fix it, just never got around to it). So now I use a pyrometer (hi temp thermometer) to tell when to turn off the kiln. But last few firings it seems like the temp was hotter than the pyrometer was reading so I decided to do an experiment. I put 4 cones in the kiln - 06, 05, 04, and 03. (Don't look at my filthy kiln, it needs to be vacuumed )


I fired the kiln yesterday to 1760 degrees on my pyrometer which should have been about ^07, here's the results I got.


The 06 cone over fired, it should have bent at about 1830 degrees. The 05 cone fired just about right, it is designed to bend at about 1890 degrees. The 04 cone (1950 degrees) was just starting to bend and the 03 cone (1990 degress) has not yet started. Based on these cones, my kiln fired to about 1890 degress and my pyrometer read 1760, looks like my pyrometer is reading about 130 degrees too low. I can either try to calibrate my pyrometer, add 130 degrees to the reading, or fix my Kiln-Setter. Why does it matter? Most low fire glazes fire to ^06 but some of the colors are susceptible to overfiring, the color will wash out and may even turn to a clear glaze. On the more extreme side, it can get hot enough to actually melt the clay into a puddle on the floor of the kiln!!! I just wanted to be sure I get it right before I fire the snake hut

_________________
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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