David Hendley on tue 25 feb 03
Sure, you can set out to intentionally make grog, but even to
me, a dyed-in-the-wool do-it-yourselfer, this seems kind of
pointless when you can just drive over to Armadillo Clay
and buy a bag of grog.
It will involve mincing the clay when wet, grinding it finer
after it is bisqued, and screening it through screens to get
the right particle size. There is certainly no monetary savings
to speak of if you use clay that costs 15 cents a pound to
make grog that costs 20 cents a pound.
The point of making grog out of bisqueware is that you are
recycling useless broken or cracked bisque-fired pots.
It is still only marginally worth the time and effort, compared
to buying grog, but makes sense if you, like me, find it satisfying
to make good use of materials that would otherwise become
trash.
I also use my hammer mill to crush glass bottles, which then go
to the ball mall, to make glass cullet for inclusion in glazes,
and to crush raw clay, which can be pretty hard when mined.
My hammer mill, by the way, is actually a "feed mill" that is made
to grind dried field corn into cattle feed.
I heard it advertised on my small town radio swap show, went to
look at it, saw that it was really a hammer mill, and bought it for
$100. It is "International Harvester" brand and has a 3 HP gas engine.
The broken bisque must be passed through about 3 times, and then
put through a 40 mesh sieve to end up with usable fine grog.
This is a loud and dusty job, but still kind of fun on an occasional
basis, especially if you like breaking things.
David Hendley
Maydelle, Texas
david@farmpots.com
http://www.farmpots.com
----- Original Message -----
> why wait until the clay is bisqued and then try to crush it? I
> haven't tried this yet, but my idea is to put my wet, or perhaps leather
> hard, clay through a ricer or meat grinder, spread the ground pieces out
> on a table to dry, then scoop up the pieces and fire them in some sort
> of container - maybe a clay flower pot. Even if I needed finer grog and
> wanted to crush some after it had been bisqued, I'd be dealing with a
> much easier crushing problem it seems to me. Is there some disadvantage
> to this approach that I'm over looking?
Wanda Holmes on tue 25 feb 03
I have recently contemplated making my own grog and have, therefore,
been very interested in the recent thread on the subject. My question
is why wait until the clay is bisqued and then try to crush it? I
haven't tried this yet, but my idea is to put my wet, or perhaps leather
hard, clay through a ricer or meat grinder, spread the ground pieces out
on a table to dry, then scoop up the pieces and fire them in some sort
of container - maybe a clay flower pot. Even if I needed finer grog and
wanted to crush some after it had been bisqued, I'd be dealing with a
much easier crushing problem it seems to me. Is there some disadvantage
to this approach that I'm over looking?
Wanda
In the winter wonderland of Austin, TX blanketed in ice
Dannon Rhudy on wed 26 feb 03
.......My reason for wanting to make grog is that the grog from
> Armadillo is grey in color and I don't want the grey flecks in my white
> clay body.......
Does Armadillo not have porcelain grog? You can get it from
Texas Pottery Supply in Fort Worth, if not.
regards
Dannon Rhudy
Mayssan Shora Farra on wed 26 feb 03
Hthis started me thinking about molochite. Isn't it apure form of grog?. I
use the 181 standard clay that has it and it is pure white. have you
checked at ceramic suppliers to see if they sell it?
best of luck
Mayssan
Russel Fouts on wed 26 feb 03
Wanda
>> I have recently contemplated making my own grog and have, therefore, been very interested in the recent thread on the subject. My question is why wait until the clay is bisqued and then try to crush it? I haven't tried this yet, but my idea is to put my wet, or perhaps leather
hard, clay through a ricer or meat grinder, spread the ground pieces out
on a table to dry, then scoop up the pieces and fire them in some sort
of container - maybe a clay flower pot. Even if I needed finer grog and
wanted to crush some after it had been bisqued, I'd be dealing with a
much easier crushing problem it seems to me. Is there some disadvantage
to this approach that I'm over looking? <<
If you want really fine grog, just fire some of your (or another)
powdered clay. Been there, done that.
Russel
-----------------------------
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Mes Potes & Mes Pots
Brussels, Belgium
Tel: +32 2 223 02 75
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Over 1800 Pottery Links!
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Wanda Holmes on wed 26 feb 03
David, I like the idea of recycling stuff too, but I use my cracked and
warped tiles as glaze test material so they get recycled in another
form. (By the way, if you know anyone whod like a bucket or two of
discarded glaze test tiles for a mosaic project I'd love to give them
away.) My reason for wanting to make grog is that the grog from
Armadillo is grey in color and I don't want the grey flecks in my white
clay body. I'd much rather buy the grog.
I have a test in the works using white silica sand in my claybody in
place of the grog, but Ron Roy advises me that this substitution may
lead to dunting.
wanda
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of David
Hendley
Sent: Tuesday, February 25, 2003 7:12 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: making grog - why wait until bisqued?
Sure, you can set out to intentionally make grog, but even to
me, a dyed-in-the-wool do-it-yourselfer, this seems kind of
pointless when you can just drive over to Armadillo Clay
and buy a bag of grog.
It will involve mincing the clay when wet, grinding it finer
after it is bisqued, and screening it through screens to get
the right particle size. There is certainly no monetary savings
to speak of if you use clay that costs 15 cents a pound to
make grog that costs 20 cents a pound.
The point of making grog out of bisqueware is that you are
recycling useless broken or cracked bisque-fired pots.
It is still only marginally worth the time and effort, compared
to buying grog, but makes sense if you, like me, find it satisfying
to make good use of materials that would otherwise become
trash.
I also use my hammer mill to crush glass bottles, which then go
to the ball mall, to make glass cullet for inclusion in glazes,
and to crush raw clay, which can be pretty hard when mined.
My hammer mill, by the way, is actually a "feed mill" that is made
to grind dried field corn into cattle feed.
I heard it advertised on my small town radio swap show, went to
look at it, saw that it was really a hammer mill, and bought it for
$100. It is "International Harvester" brand and has a 3 HP gas engine.
The broken bisque must be passed through about 3 times, and then
put through a 40 mesh sieve to end up with usable fine grog.
This is a loud and dusty job, but still kind of fun on an occasional
basis, especially if you like breaking things.
David Hendley
Maydelle, Texas
david@farmpots.com
http://www.farmpots.com
----- Original Message -----
> why wait until the clay is bisqued and then try to crush it? I
> haven't tried this yet, but my idea is to put my wet, or perhaps
leather
> hard, clay through a ricer or meat grinder, spread the ground pieces
out
> on a table to dry, then scoop up the pieces and fire them in some sort
> of container - maybe a clay flower pot. Even if I needed finer grog
and
> wanted to crush some after it had been bisqued, I'd be dealing with a
> much easier crushing problem it seems to me. Is there some
disadvantage
> to this approach that I'm over looking?
________________________________________________________________________
______
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melpots@pclink.com.
Ababi on fri 28 feb 03
Hello Mayssan
The molochite is a very high fired ( calcined) kaolin.
Otherwise I would fire my supplier and prepare it myself
Ababi
---------- Original Message ----------
>Hthis started me thinking about molochite. Isn't it apure form of grog?. I
>use the 181 standard clay that has it and it is pure white. have you
>checked at ceramic suppliers to see if they sell it?
>best of luck
>Mayssan
>______________________________________________________________________________
>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.
Ababi on fri 28 feb 03
Hi!
In one of the tiny books of the CM there is an offer , how to prepare grog from
greenware.
I am not sure, it would work for big amount of clay:
You can pass it through a grater. You can pass it - while humid through a garlic
"extruder". than you bisque it and use.
This way you can add a different color grog to your claybody.
From Yehuda Koren I had learnt another thing: You can paint your grog with engob -
any color - re bisque it and add to your claybody
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
and also
http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
---------- Original Message ----------
>........My reason for wanting to make grog is that the grog from
>> Armadillo is grey in color and I don't want the grey flecks in my white
>> clay body.......
>Does Armadillo not have porcelain grog? You can get it from
>Texas Pottery Supply in Fort Worth, if not.
>regards
>Dannon Rhudy
>______________________________________________________________________________
>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.
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