Mike Arnold on fri 13 aug 10
After posting my question about implementing a step grate into a new
kiln design, as described by Dick Lehman in the article "A New
Approach To Long-Fire Results" I decided to email him my design and
see if I got it right.
He made a few suggestions as to dimensions and adding another step,
but said it looked right. I have posted a few screenshots of the 3d
model I made of the kiln on my blog. The design is not quite done, and
I have to double check a few dimensions, but it should give someone
who is curious an idea about the system. If anyone has any questions
or suggestions, please feel free to speak up.
--
Michael Arnold
http://idioart.blogspot.com
Lee Love on fri 13 aug 10
Mike,
Dick's steps are steeper. You could add that, by making the
stoke end higher. Also, at the end of the steps, Dick has a floor
where he puts his anagama type work. It is higher than your floor at
the end of the steps. That's the whole point of building up the
ash, because your bag wall will keep it from going heavily into the
second chamber.
Have you consider mouse holes below your stoke area for the back
chamber? It could help keep you from drawing ash over cooling pots
in the firemouth, if you put pots there.
--=3D20
--
=3DA0Lee, a Mashiko potter in Minneapolis
http://mingeisota.blogspot.com/
=3D93Observe the wonders as they occur around you. Don't claim them. Feel
the artistry moving through and be silent.=3D94 --Rumi
gary navarre on fri 13 aug 10
Thanks Mike,
Now I understand how you stoke this kiln, similar to how I use the Pignose=
during the early stages of the fire. It seems there are a lot more bricks =
into the firebox than what will eventually become the chamber but I guess y=
ou are also setting pots inside the firebox for lots of ash buildup before =
the flame goes through enterence flues (throat arch?) and hits a bagwall in=
the second chamber. I bet the second chamber would be easier to fire glaze=
d ware evenly with the arch axis perpendicular to the draft in the taller c=
hamber.
Gary Navarre
Navarre Pottery
Navarre Enterprises
Norway, Michigan, USA
http://www.youtube.com/GindaUP
http://public.fotki.com/GindaUP/
--- On Fri, 8/13/10, Mike Arnold wrote:
> From: Mike Arnold
> Subject: [Clayart] Pertaining to the "Step-Grate Firebox"
> To: Clayart@LSV.CERAMICS.ORG
> Date: Friday, August 13, 2010, 11:31 AM
> After posting my question about
> implementing a step grate into a new
> kiln design, as described by Dick Lehman in the article "A
> New
> Approach To Long-Fire Results" I decided to email him my
> design and
> see if I got it right.
>
> He made a few suggestions as to dimensions and adding
> another step,
> but said it looked right. I have posted a few screenshots
> of the 3d
> model I made of the kiln on my blog. The design is not
> quite done, and
> I have to double check a few dimensions, but it should give
> someone
> who is curious an idea about the system. If anyone has any
> questions
> or suggestions, please feel free to speak up.
>
> --
> Michael Arnold
>
> http://idioart.blogspot.com
>
Steve Mills on sat 14 aug 10
Hi Mike,
There is quite a reasonable illustration of Dick's grate on page 70 of
Alternative Kilns by Ian Gregory, published in the USA by the University of
Pennsylvania Press.
Steve Mills
On 13 August 2010 17:31, Mike Arnold wrote:
> After posting my question about implementing a step grate into a new
> kiln design, as described by Dick Lehman in the article "A New
> Approach To Long-Fire Results" I decided to email him my design and
> see if I got it right.
>
> He made a few suggestions as to dimensions and adding another step,
> but said it looked right. I have posted a few screenshots of the 3d
> model I made of the kiln on my blog. The design is not quite done, and
> I have to double check a few dimensions, but it should give someone
> who is curious an idea about the system. If anyone has any questions
> or suggestions, please feel free to speak up.
>
> --
> Michael Arnold
>
> http://idioart.blogspot.com
>
--
Steve
Bath
UK
www.mudslinger.me.uk
Growing old is inevitable, growing up is optional!
Craig Edwards on sat 14 aug 10
Hi Mike: It looks interesting. Do you take the grate apart to get into the
first chamber to stack the pots?
--
Make Good Pots
~Craig
New London MN
http://woodfiredpottery.blogspot.com/
Kiln building workshop October 15-22
Taku, Japan
karatsupots-workshop.blogspot.com/
On Fri, Aug 13, 2010 at 11:31 AM, Mike Arnold wro=
te:
> After posting my question about implementing a step grate into a new
> kiln design, as described by Dick Lehman in the article "A New
> Approach To Long-Fire Results" I decided to email him my design and
> see if I got it right.
>
> He made a few suggestions as to dimensions and adding another step,
> but said it looked right. I have posted a few screenshots of the 3d
> model I made of the kiln on my blog. The design is not quite done, and
> I have to double check a few dimensions, but it should give someone
> who is curious an idea about the system. If anyone has any questions
> or suggestions, please feel free to speak up.
>
> --
> Michael Arnold
>
> http://idioart.blogspot.com
>
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