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Showing results for tags 'witness cone'.
Hello All, So I just completed my first bisque firing and took a quick peak at the top shelf (Temp is 250F). The witness cones are not what I expected. Left to right 05,06,07. Kiln was fired to cone 06 slow and took 12h 26 minutes to complete. Is it possible the 06 cone bent more because of the slow bisque? I expected the 06 to be slightly bent. The top shelf was high about 3" from the kiln lid. Also wondering if i didnt leave enough room perhaps. Although this doesn't sound likely to me