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newbie question: seeing cones at 1200c

updated thu 28 aug 03

 

Lewis on tue 26 aug 03


The short version:
I can't. There must be a way - what can it be - smoked glass?

The slightly longer version:
First test-tile glaze firing of my new old kiln. Temperature apparently
rising at around a comforting 60degC per minute, so depending on accuracy of
readings etc, 1282degC should be cone 10. I expected (naively?) to be able
to check that with my carefully positioned cones, but squinting carefully
(behind spectacles) through the spyhole in the front door reveals nobbut a
uniform bright orange glow! In the bisque firing at 1000degC I could at
least see the shadow outline of the pots. What's the solution? Apart from
waiting for several hours while everything cools down!

Thanks in advance

Lewis

Lewis on wed 27 aug 03


Found stuff in archives, actually once I changed to word "see/seeing" to
"view/viewing" in the search dialogue. (Why is "see/seeing" a reserved
word)?

Thanks to peeps who replied.

Lewis


On Monday, August 25, 2003, at 08:22 PM, Lewis wrote:

> The short version:
> I can't. There must be a way - what can it be - smoked glass?
>

Laura Berkowitz on wed 27 aug 03


Hi Lewis,

What I do is blow into the spyhole then quickly look in. The slight cooling
from blowing provides me with discernable outlines. I can clearly see my
cones and I can see the "shine" surface of my glaze to guage for melt. This
is in my electric kiln--firing to Cone 9. Do not place a piece of pottery
directly behind your cones. It helps if there is a void space behind
them--when you blow that puff of air in, the area right behind the cones
will appear darker than the cones, thus making your cones more visable.

Hope this helps--let us know if it works. I've never tried it with any
kilns other than my own, but it works for me.

Laura (Fairbanks, AK)

> I expected (naively?) to be able
>to check that with my carefully positioned cones, but squinting carefully
>(behind spectacles) through the spyhole in the front door reveals nobbut a
>uniform bright orange glow!....

WHC228@AOL.COM on wed 27 aug 03


Use a strong bright light, like a halogen. The light will be brighter than
the light from the kiln, and you will be able to see your cone.
Don't forget to protect your eyes.
Bill

Mike Henry on wed 27 aug 03


Lewis, I had the same problem with a good kiln, as the peeps were very
small. Don Hunt from the San Diego,CA area, suggested trying a diver's
flashlight because the light is so bright. I bought a small one and it
worked well. Only draw back is you can't leave the light on for long or it
will melt the plastic lenses, but for the few seconds it takes to view the
cones, causes no problems.

Mike

Forwarded From: Lewis

> The short version:
> I can't. There must be a way - what can it be - smoked glass?
>
>