search  current discussion  categories  forms - plates 

plate setters warping

updated tue 14 mar 00

 

Catherine Jarosz on thu 9 mar 00

Hi I bought some plate setters about 1 yr ago and have used them 3-4
times in cone 10 reduction and when I went to use them this go round
noticed that they are warping ( middle is sinking down) ouchhhhh err
ooskeee aweful expensive to lose em sooo soon in the game... I ended up
losing a few ( 4 plates) to warped bottoms) can problebly grind the foot
and save at least 2 of em but would rather it didnt happen ... has anyone
tried firing the plate setters upside down without any thing on em??? Is
this a waste of time and shelf space? If I can fire them upside down with
nothing on them could I also stack them with a 1/2 inch post inbetween
and save me some valuable kiln space or do they need to be layed flat on
the kiln shelf??? Anyone out there have problems with these things soooo
soon ? I admit I have flattened some 11's in my kiln waiting for my cold
spot to get 10 in the 2 30 3 oclock position .... never put 12's in as I
really dont wanna know :o/ ... does anyone have the life span of these
plate setters ?? Is it a necessary expense where you need to replace them
on a yrly basis??? anyone got the scoop on these things and could shed
some light for me I'd sure be appreciative ... thanks Cat

Cantello Studios on fri 10 mar 00

HI Cat sorry to hear about the plate setters. It also happened to some that
I have been using. I like your thoughts on trying to straighten them out and
I have thought of doing the same thing. Though I have not done it, I say go
for it anyway. I would say just fire them stacked upside down on a nice flat
shelf all stacked together. The best thing to do and I m sure you know is
fire fast and hot from ^9 to ^11 then turn it off. I have found that at this
point in the glaze fire there is really no reason to go slow, it s only hard
on the kiln and all. Chris

-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.UKY.EDU]On Behalf
Of Catherine Jarosz
Sent: Thursday, March 09, 2000 1:23 PM
To: CLAYART@LSV.UKY.EDU
Subject: Plate setters warping


----------------------------Original message----------------------------
Hi I bought some plate setters about 1 yr ago and have used them 3-4
times in cone 10 reduction and when I went to use them this go round
noticed that they are warping ( middle is sinking down) ouchhhhh err
ooskeee aweful expensive to lose em sooo soon in the game... I ended up
losing a few ( 4 plates) to warped bottoms) can problebly grind the foot
and save at least 2 of em but would rather it didnt happen ... has anyone
tried firing the plate setters upside down without any thing on em??? Is
this a waste of time and shelf space? If I can fire them upside down with
nothing on them could I also stack them with a 1/2 inch post inbetween
and save me some valuable kiln space or do they need to be layed flat on
the kiln shelf??? Anyone out there have problems with these things soooo
soon ? I admit I have flattened some 11's in my kiln waiting for my cold
spot to get 10 in the 2 30 3 oclock position .... never put 12's in as
I
really dont wanna know :o/ ... does anyone have the life span of these
plate setters ?? Is it a necessary expense where you need to replace them
on a yrly basis??? anyone got the scoop on these things and could shed
some light for me I'd sure be appreciative ... thanks Cat

Frederich, Tim on fri 10 mar 00

Catherine,
Your plate setters are probably only rated to cone 10. At this point
and higher they will probably start to show some warpage. You can try firing
them upside down to reverse the warpage like some people do with kiln
shelves. At your high temperatures they will probably keep warping. Check
with your supplier or manufacturer for the rating on your setters.
I hope this helps.

Sincerely,
Tim Frederich, Orton Ceramic Foundation

> ----------
> From: Catherine Jarosz[SMTP:Cat81257@aol.com]
> Sent: Thursday, March 09, 2000 4:22 PM
> To: CLAYART@LSV.UKY.EDU
> Subject: Plate setters warping
>
> ----------------------------Original message----------------------------
> Hi I bought some plate setters about 1 yr ago and have used them 3-4
> times in cone 10 reduction and when I went to use them this go round
> noticed that they are warping ( middle is sinking down) ouchhhhh err
> ooskeee aweful expensive to lose em sooo soon in the game... I ended
> up
> losing a few ( 4 plates) to warped bottoms) can problebly grind the
> foot
> and save at least 2 of em but would rather it didnt happen ... has
> anyone
> tried firing the plate setters upside down without any thing on em??? Is
> this a waste of time and shelf space? If I can fire them upside down with
> nothing on them could I also stack them with a 1/2 inch post inbetween
> and save me some valuable kiln space or do they need to be layed flat on
> the kiln shelf??? Anyone out there have problems with these things
> soooo
> soon ? I admit I have flattened some 11's in my kiln waiting for my
> cold
> spot to get 10 in the 2 30 3 oclock position .... never put 12's in
> as I
> really dont wanna know :o/ ... does anyone have the life span of these
> plate setters ?? Is it a necessary expense where you need to replace
> them
> on a yrly basis??? anyone got the scoop on these things and could shed
> some light for me I'd sure be appreciative ... thanks Cat
>

Jonathan Kaplan on sat 11 mar 00

We have used Diamond/Gimson plate setters form the UK for well over 15
years of so. In fact, we are still using setters from our initial order
from1985. We have never experienced any warpage whatsoever.

There are many manufacturers of these devices both domestically and abroad.
I would urge you to check very carefully the composition of the setters and
the process by which they are made before you purchase them.

If you need any further information, call me or post me off the list.

Best


Jonathan

Jonathan Kaplan
Ceramic Design Group LTd/Production Services
PO Box 775112
Steamboat Springs, CO 80477
(970) 879-9139 voice and fax
http://www.sni.net/ceramicdesign

UPS: 1280 13th St. Unit13
Steamboat Springs, CO 80487

Robert Friedman on sat 11 mar 00

I was using plate settesr in a soft curved cone 10 firing in reduction. The
plate setters also began to warp but we expected it and started firing them
alternately upside down and right side up. We did post them instead of
firing direct to the shelf. We also found these plate setters useful for
firing large bowls on the bottom shelf of the kiln as we had a problem with
large bowls not fully maturing at the bottom. The setters solved this
problem.

----------
>From: Catherine Jarosz
>To: CLAYART@LSV.UKY.EDU
>Subject: Plate setters warping
>Date: Thu, Mar 9, 2000, 9:22 PM
>

> ----------------------------Original message----------------------------
> Hi I bought some plate setters about 1 yr ago and have used them 3-4
> times in cone 10 reduction and when I went to use them this go round
> noticed that they are warping ( middle is sinking down) ouchhhhh err
> ooskeee aweful expensive to lose em sooo soon in the game... I ended up
> losing a few ( 4 plates) to warped bottoms) can problebly grind the foot
> and save at least 2 of em but would rather it didnt happen ... has anyone
> tried firing the plate setters upside down without any thing on em??? Is
> this a waste of time and shelf space? If I can fire them upside down with
> nothing on them could I also stack them with a 1/2 inch post inbetween
> and save me some valuable kiln space or do they need to be layed flat on
> the kiln shelf??? Anyone out there have problems with these things soooo
> soon ? I admit I have flattened some 11's in my kiln waiting for my cold
> spot to get 10 in the 2 30 3 oclock position .... never put 12's in as I
> really dont wanna know :o/ ... does anyone have the life span of these
> plate setters ?? Is it a necessary expense where you need to replace them
> on a yrly basis??? anyone got the scoop on these things and could shed
> some light for me I'd sure be appreciative ... thanks Cat

GSM_ENT on sun 12 mar 00

Hi Tim:

How goes it? I hope you are doing fine. We are all looking forward to your
Firing Tips on Pottery. I know this has been in the mill for quite some time
now and you must be anxious to have it published.

Did you get my request for refernce materials for this year's shows. I
already attended the first one (Waco) and only had what I got from the booth
at the Florida Show.

HORMACA company in Venezuela is selling shelves and posts rated cone 12.
They are great! Some kin companies are already buying them. The will not
bend at cone 10.

Warm Regards,

Tony
GSM Enterprises
San Antonio, TX
----- Original Message -----
From: Frederich, Tim
To:
Sent: Friday, March 10, 2000 12:53 PM
Subject: Re: Plate setters warping


> ----------------------------Original message----------------------------
> Catherine,
> Your plate setters are probably only rated to cone 10. At this
point
> and higher they will probably start to show some warpage. You can try
firing
> them upside down to reverse the warpage like some people do with kiln
> shelves. At your high temperatures they will probably keep warping. Check
> with your supplier or manufacturer for the rating on your setters.
> I hope this helps.
>
> Sincerely,
> Tim Frederich, Orton Ceramic Foundation
>
> > ----------
> > From: Catherine Jarosz[SMTP:Cat81257@aol.com]
> > Sent: Thursday, March 09, 2000 4:22 PM
> > To: CLAYART@LSV.UKY.EDU
> > Subject: Plate setters warping
> >
> > ----------------------------Original message----------------------------
> > Hi I bought some plate setters about 1 yr ago and have used them
3-4
> > times in cone 10 reduction and when I went to use them this go round
> > noticed that they are warping ( middle is sinking down) ouchhhhh err
> > ooskeee aweful expensive to lose em sooo soon in the game... I ended
> > up
> > losing a few ( 4 plates) to warped bottoms) can problebly grind the
> > foot
> > and save at least 2 of em but would rather it didnt happen ... has
> > anyone
> > tried firing the plate setters upside down without any thing on em???
Is
> > this a waste of time and shelf space? If I can fire them upside down
with
> > nothing on them could I also stack them with a 1/2 inch post
inbetween
> > and save me some valuable kiln space or do they need to be layed flat
on
> > the kiln shelf??? Anyone out there have problems with these things
> > soooo
> > soon ? I admit I have flattened some 11's in my kiln waiting for my
> > cold
> > spot to get 10 in the 2 30 3 oclock position .... never put 12's in
> > as I
> > really dont wanna know :o/ ... does anyone have the life span of
these
> > plate setters ?? Is it a necessary expense where you need to replace
> > them
> > on a yrly basis??? anyone got the scoop on these things and could
shed
> > some light for me I'd sure be appreciative ... thanks Cat
> >

Catherine Jarosz on sun 12 mar 00

Jonathon wow those plate setters sound like jewels sure would love
to order some here in the states... do you or anyone else know if anyone
carries them here? If not where could I order them in the UK??? the
plate setters I'm using are rated cone 10 but with uneven firings I"m
sure thats the cause ... I know others are using these same plate setters
and going to cone 10 with some hot spots successfully ... a local
friend said she flips them each time she uses them .... has lost a few
but for the most part the setters work ok used upside down every other
use... I"m gonna try to save these ones I have but will have to buy more
and start flipping them over unless the ones you have will go to 11
maybe 12 on occassion??... thanks for any additional imfo you can give
me ... Cat

Tom Wirt on sun 12 mar 00

Cat...

You're going to get dozens of replies that no one else has this problem.
Well, we do. They bend. We don't burn the hell out of things...maybe cone
9-3/4 where plates usually go, very light reduction...5.2 to 5.5 on the oxy
probe....and yes, they bend. We've tried every kind available....the ones
from Highwater Clays (Gimson) are the best we've found....tried everyone
else's.


We do find that there is no setter (that we've found) that will take a cone
11. If you're going to use these things, you've got to take some care. We
just plan to replace the dinner plate ones (12") every year after maybe 20
firings. Smaller ones (9"-10" will go 2 to 3 years).
The one's from Mexico are the worst.

Highwater has said (talk to Brian) that they are switching to Acme-Marls
setters.

We've tried rebending them, but without any success.

Tom Wirt
----- Original Message -----
Subject: Plate setters warping


> Hi I bought some plate setters about 1 yr ago and have used them 3-4
> times in cone 10 reduction and when I went to use them this go round
> noticed that they are warping ( middle is sinking down) ouchhhhh

Rikki Gill on sun 12 mar 00

I have had the same problem. Mine are acme marls with removable feet. I
was told to use sair something to permanently fix the feet in place. When I
called another place to replace the setters, they told me that was the
problem, and to flip them over after each firing. Not a good way tho to
build a stack. Now I'm not sure what to do. Right now I'm putting plates
directly on advancer shelves which is too expensive to be a permanent
solution. Rikki

Robert Santerre on sun 12 mar 00

Jonathan, how have you been firing these, cone?, ox/red? Do you have
address/contact info for Diamond/Gimsom?

Thanks, Bob

////////////////////////////////////////////////////////////

Jonathan Kaplan wrote:

> ----------------------------Original message----------------------------
> We have used Diamond/Gimson plate setters form the UK for well over 15
> years of so. In fact, we are still using setters from our initial order
> from1985. We have never experienced any warpage whatsoever.
>
> There are many manufacturers of these devices both domestically and abroad.
> I would urge you to check very carefully the composition of the setters and
> the process by which they are made before you purchase them.
>
> If you need any further information, call me or post me off the list.
>
> Best
>
> Jonathan
>
> Jonathan Kaplan
> Ceramic Design Group LTd/Production Services
> PO Box 775112
> Steamboat Springs, CO 80477
> (970) 879-9139 voice and fax
> http://www.sni.net/ceramicdesign
>
> UPS: 1280 13th St. Unit13
> Steamboat Springs, CO 80487

Jonathan Kaplan on mon 13 mar 00


For those interested in Diamond/Gimson plate setters...

The ones that we use are called VB setters and they are available in
various diameters and with separate legs for various heights. We have used
these for many years without any warping. They are quite versitile and will
increase your load capacity multifold.

You can get them from ClayArt Center in Tacoma or HighWater Clays in Ashville.

I'll bring a few to NCECA so you can see them.

Jonathan

Jonathan Kaplan, president
Ceramic Design Group
PO Box 775112
Steamboat Springs CO 80477
voice and fax 970 879-9139
jonathan@csn,net
http://www.sni.net/ceramicdesigin