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scottiebie

Building Mini Raku Kiln

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Years ago, I saw a  mini raku kiln made from soft bricks and fired with a Mapp gas torch.  A top loader, only space for loading one pot at a time, using  a half brick as a damper.  The raku pots were small, about 2" x  3" and would only take about 10 minutes to fire,  The post reduction container was a tin coffee can.   I can't remember how it was built.  Anyone have an idea of how to build one?  It reminds me of a small rocket stove.  

Edited by scottiebie

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My raku kiln is similar to the one in the link.  I fire several small, to medium-sized objects at a time.  I've tried some larger bowls, but they overhung the shelf, causing the rims to crack, as they were in the path of the flame 

But it's a good little kiln, and it does what I need it to do.

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Here are a few shots of a portable unit I made. I've just used it for firing my Horsehair Raku stuff and will be trying it out for regular Raku soon. I made it portable so I can fire it anywhere on my property but the driveway works out just fine. If you're interested in details, PM me and we can work it out...

1954522435_Burnersidesm.jpg.4a8977a24310ebff52e1ac12fd1003c1.jpg1329144693_Insidesm.jpg.8fe15d79083ec521ce454b4a9e0fc12f.jpg82230048_Shelf1sm.jpg.9d00053fff6fbd2a0a6678e7b4afd5c8.jpg1370521889_Shelf2sm.jpg.45829402d0ddbb7859099ff1bb35573b.jpg1618319429_Finishedsm.jpg.737d61159493255d832af4b7d9a72e3d.jpg327881136_Roll-aroundsm.jpg.d549f0e616a88e6b1663e92e39a330aa.jpg305911757_Wiresm.jpg.7f482b101fd6b37641ab404112a4eca6.jpg

Edited by JohnnyK

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16 minutes ago, JohnnyK said:

Here are a few shots of a portable unit I made

that is a slick setup. This thread has me motivated. Bought burner, trashcan and some other parts years ago and just keep moving them around. Did you build that cart?

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I got the cart from a friend who said he got it from Harbor Freight. I modified it with handmade spindles and HF wheels. I welded up the brick frame from box tubing. The wire for the housing was purchased at Home Depot; the blanket was bought at Alpha Fired Arts (my local ceramic supplier); I made the ceramic buttons to hold the blanket in place and used some nichrome wire to hold the buttons in place. The 22" diameter kiln shelf sits on a couple of bricks inside the cage. The burner is a weed torch, also from HF. 

For the HH Raku It takes about 20 minutes to heat it to 1400 degrees, gradually increasing the torch output over that 20 minutes. I can get it up to temp in a shorter time, but in doing so I found hairline cracks in some of the jars...

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20 hours ago, JohnnyK said:

I got the cart from a friend who said he got it from Harbor Freight. I modified it with handmade spindles and HF wheels. I welded up the brick frame from box tubing. The wire for the housing was purchased at Home Depot; the blanket was bought at Alpha Fired Arts (my local ceramic supplier); I made the ceramic buttons to hold the blanket in place and used some nichrome wire to hold the buttons in place. The 22" diameter kiln shelf sits on a couple of bricks inside the cage. The burner is a weed torch, also from HF. 

Are the bottom layer of bricks fire bricks or just pavers?

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