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Small Versus Large Cones


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A question came up recently as to whether it's not a good idea to use small witness cones instead of the large ones.  I thought someone on the forums made a case that it wasn't a good idea, but I can't remember, who, or why or when.

A forum search (done properly from the main page) came up empty.  The orton website says the small cones can be substituted in cases where space is an issue.  Well, if they're interchangeable, then why not just use them since they're cheaper and take up less space?  Unless, of course, you're trying to see them in the kiln, in which case the large ones will be easier to see.

 

Anyone have input on this?

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Guest JBaymore

Small cones are calibrated to match large cones when used in a (old-style) kiln sitter device.

 

It you used to use the large cones, and you want to now switch to using small cones instead... you might (likely will) have to "adjust" your thinking as to what cone you fire to.  A large cone 9 down and a small cone 9 down are not the same amount of heat work.

 

best,

 

................john

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