Tammy Young on wed 16 oct 02
Has anyone ever had a problem with the sitter cone sticking to the sensing rod
and not coming off? I tried to break part of the cone off but there is still a
little chunk left on it that I can't seem to get off. I had to rotate the rod
so that I could still put cones on it.
Is there any easy way to get this chunk off without taking the thing apart and
scraping it? Any chemicals?
Thanks.
Pottery by Dai on wed 16 oct 02
Once you get the particle off the rod, coat both rod and cone supports with
kiln wash, and it shouldn't happen again. Sorry, but I have no idea how to
get what's already on there, off. Maybe persistent chipping?
Dai in Armstrong, BC
dai@potterybydai.com
potterybydai@telus.net
nightfire@telus.net
www.potterybydai.com
Take your work seriously---take yourself lightly. Unknown
----- Original Message -----
From: "Tammy Young"
To:
Sent: Wednesday, October 16, 2002 7:20 AM
Subject: cone stuck to sensing rod
> Has anyone ever had a problem with the sitter cone sticking to the sensing
rod
> and not coming off? I tried to break part of the cone off but there is
still a
> little chunk left on it that I can't seem to get off. I had to rotate the
rod
> so that I could still put cones on it.
> Is there any easy way to get this chunk off without taking the thing apart
and
> scraping it? Any chemicals?
> Thanks.
Marvpots@AOL.COM on wed 16 oct 02
Hi Tammy:
Those parts are a bit delicate and could fracture when you try chipping or
scraping the cone remains off of them.
If you run the kiln at a significantly higher temperature than the cone used
when the problem was created, the remains should melt off. this may require
running the kiln empty.
After the parts are clean, you should coat them with a thin coating of kiln
wash to prevent the future possibility of a melting cone sticking to those
parts, as well as enhancing the deformation of the cone at temperature..
Good luck!
Marvin Flowerman
marvpots@aol.com
Fredrick Paget on wed 16 oct 02
The particle of cone material is brittle and if you just grab it with
pliers you should be able to crush it and it will come off.
Fred
From Fred Paget, Marin County, California, USA
Jim Bob Salazar on thu 17 oct 02
hey tammy,
i have had that problem a couple of times myself. two solutions...you can
typically get it off by using pliers to just crunch it off but there is
always that little bit left. you know those vibrating electric pens that
you mark all your valuables with? well, i use one for getting glaze off
shelves and cones of rods, works great.
jim bob
vince pitelka on thu 17 oct 02
> If you run the kiln at a significantly higher temperature than the cone
used
> when the problem was created, the remains should melt off. this may
require
> running the kiln empty.
With all due respect to Marvin, I would not recommend this. Overfiring
might melt the cone further, but it would just remain stuck to the sensing
rod.
Instead, I recommend removing the cone-support prongs, and just squeeze the
end of the sensing rod with good pliers held at 90 degrees to the sensing
rod, so that you can squeeze hard without any risk of bending the sensing
rod. Squeeze again and again as you move the pliers around the
circumference of the rod, so that you have squeezed the entire
circumference. This should chip off the remains of the fired cone. After
that, sand the sensing rod with emery paper, and then
make sure it still moves up and down very smoothly. I have never been a fan
of using kiln wash on the sensing rod or cone support prongs, but I know it
works for some people.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://www.craftcenter.tntech.edu/
Arnold Howard on thu 17 oct 02
You may be able to remove the cone fragment from the actuating rod
with pliers. Or, it may be better to replace the rod. The cost is
only $4.50. The rod should be replaced periodically anyway.
Arnold Howard
Paragon Industries, Inc.
--- Tammy Young wrote:
> Has anyone ever had a problem with the sitter cone sticking to
> the sensing rod
> and not coming off? I tried to break part of the cone off but
> there is still a
> little chunk left on it that I can't seem to get off. I had to
> rotate the rod
> so that I could still put cones on it.
> Is there any easy way to get this chunk off without taking the
> thing apart and
> scraping it? Any chemicals?
> Thanks.
>
>
______________________________________________________________________________
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william schran on thu 17 oct 02
Tammy - Try needle nose pliers to break off little bits at a time,
then coat the rod and support with some kiln wash to prevent this in
the future.
Bill
Craig Clark on fri 18 oct 02
Tammy, this happpened to mine long, long ago in a land far, far away. I just
heated the offending cone up with a propane torch and used a pair of needle
nose pliers as suggested. The heat helped. The cone came off without much
difficulty. Remember to recalibrated the cone sitter after you are finished.
Craig Dunn Clark
619 East 11 1/2 st
Houston, Texas 77008
(713)861-2083
mudman@hal-pc.org
----- Original Message -----
From: "william schran"
To:
Sent: Thursday, October 17, 2002 4:03 PM
Subject: Re: cone stuck to sensing rod
> Tammy - Try needle nose pliers to break off little bits at a time,
> then coat the rod and support with some kiln wash to prevent this in
> the future.
> Bill
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Steve Mills on sat 19 oct 02
Tammy, I don't know if anyone's told you this one, but the way I deal
with this problem is to heat up the end of the sensing rod with a very
small gas torch; like the sort used in the kitchen for caramelising, and
then put a cup underneath and pour a small amount of cold water over the
end while it is still *!/--! hot. the melted cone will shatter off and
be carried down into the cup with the water, leaving the end clean and
undamaged.
Steve
Bath
UK
In message , Tammy Young writes
>Has anyone ever had a problem with the sitter cone sticking to the sensin=
>g rod
>and not coming off? I tried to break part of the cone off but there is st=
>ill a
>little chunk left on it that I can't seem to get off. I had to rotate the=
> rod
>so that I could still put cones on it.
>Is there any easy way to get this chunk off without taking the thing apar=
>t and
>scraping it? Any chemicals?
>Thanks.
--
Steve Mills
Bath
UK
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