How many degrees between these cone positions?

Monday 22nd July 2019

I was consistently getting the cone on the left when using a custom-programmed insight-live.com/glossary/226">firing schedule to 2204F (for cone 6 with ten minute hold). However Orton recommends that the tip of the self supporting cone should be even with the top of the base (they consider the indicating part of the cone to be the part above the base). So I adjusted the program to finish at 2200F and got the cone on the right. But note: This applies to that kiln at that point in time (with that pyrometer and that firing schedule). Our other test kiln bends the cone to 5 o'clock at 2195F. Since kiln controllers fire cone 6 at 2230 (for the built-in one-button firings) your kiln is almost certainly over firing!

Pages that reference this post in the Digitalfire Reference Library:

Bloating with multiple bodies at cone 6: Why is this happening?, Pyrometric Cone, Firing Schedule, Plainsman Cone 10R Firing, Plainsman Cone 6 Electric Standard, Cone 03 Fast Fire, Low Temperature Drop-and-Hold, Cone 6 Drop-and-Soak Firing Schedule, Plainsman Cone 6 Slow Cool, Plainsman Low Temperature Drop-and-hold

This post is one of thousands found in the Digitalfire Reference Database. Most are part of a timeline maintained by Tony Hansen. You can search that timeline on the home page of digitalfire.com.