David Hendley on wed 20 mar 02
Dear claycrazy,
We're talking about small handle or coil shapes.
The full-size die with a hole in it holds the smaller
insert in place.
This is not for 2-part dies for hollow extrusions.
David Hendley
Maydelle, Texas
hendley@tyler.net
http://www.farmpots.com
----- Original Message -----
From: "Judith Frederick"
To:
Sent: Wednesday, March 20, 2002 7:41 PM
Subject: Re: Blank Extruder Dies - Small Die Shapes
> what holds the insert die in place if it is not attached anywhere?
> are we talking about shapes like a hollow tube circle or square?
>
>
> >Bonnie, I call this die-within-a-die a "doughnut die".
> >I use common 1/8" Plexiglas, which is much more substantial
> >than a credit card, but still very easy to cut and work.
> >I've cracked a few, but they last a long time.
> >You can see photos in Diana Pancioli's "Extruded Ceramics"
> >book.
> >It's the only way to go; no reason to use all that material
> >for a whole new die, when you just need a small shape, and
> >you can whip up a new die in no time.
> >
> >There is really no need to take the time to attach the small
> >plastic die to the larger holder die. Clay in the extruder will
> >hold it in place.
Olivia T Cavy on wed 20 mar 02
For those of us who live in more populated areas, this is a very
informative posting. Thanks, John!
Here is one other thought on making small extruder dies like handles,
rope shapes, feet, rims, etc. that I saw at Jim Robison's excellent demo
at the North Star booth with Daryl Baird on Thursday and Friday afternoon
in the commercial area of NCECA.
Jim cuts out his die shape from the spent credit card/telephone card and
places it on top of a more substantial open die. He uses an open shaped
extruder die made of more substantial material such as the aluminum road
signs David Hendley likes or the commercially produced open shapes sold
for most extruders. He temporarily "attaches" the credit card with a few
soft clay pieces, to hold it in place while the die is firmly attached in
the extruder.
The heavier duty die absorbs most of the pressure of the extruded clay
but you can more easily cut more intricate shapes from the plastic credit
card. Credit cards are relatively easy to "cut" with a drill or a
Dremel. Even if they don't last forever, they're excellent to try out
shapes.
IMHO this little tip was worth the price of admission! I can't wait to
try it.
Bonnie
On Tue, 19 Mar 2002 17:14:14 -0500 John Hesselberth
writes:
> Aluminum is my material of choice for extruder dies so being an avid
> reader
> of Clayart I set off to my nearest junk yard (now called metal
> recycling
> centers) to see if I could use David Hendley's suggestion of cutting
> them
> from a recycled road sign. Well, the junk yard I found here in
> southeastern
> PA wasn't quite as friendly as the one in Maybelle, TX. After
> waking up
> (literally) the third person to try to get some help, I was rather
> brusquely
> told they sold by the ton--not by the piece.
>
> So, what to do? Turns out it wasn't hard at all. I looked in my
> yellow
> pages under sheet metal and on the first call got a quote of $38 for
> 20 ea 4
> 1/4 inch square x 1/8 inch aluminum pieces. Picked them up that same
> afternoon. While I was there I also learned this particular sheet
> metal
> shop has a water jet which could cut really intricate patterns in my
> aluminum blanks if I needed that. Overall, not as cheap as road
> signs would
> have been, but not bad considering they are cut to size and ready to
> use. I
> now have a multi-year supply of blanks and hope this info will help
> someone
> else in "junk-yard-challenged" parts of the world.
>
> Regards,
>
> John
>
> who is gradually beginning to be able to sleep normally again after
> of 5
> days of stimulation at NCECA. Did you all notice how the
> environment at the
> Hyatt had changed by Saturday evening? From a crowded lobby of
> friendly,
> chatting potters enjoying each other's company and a beer to a
> stiff, more
> formal world of suits and sport jackets with nobody looking like
> they were
> enjoying themselves--what a difference!! Not much question about
> what group
> I want to be associated with--and I used to belong to the other one.
>
>
> web sites: http://www.masteringglazes.com and
> http://www.frogpondpottery.com
> EMail: john@frogpondpottery.com
>
> "Pots, like other forms of art, are human expressions: pleasure,
> pain or
> indifference before them depends upon their natures, and their
> natures are
> inevitably projections of the minds of their creators." Bernard
> Leach, A
> Potter's Book.
>
>
_________________________________________________________________________
_____
> 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.
Bonnie D. Hellman, Pittsburgh, PA
PA work email: oliviatcavy@juno.com
PA home email: mou10man@sgi.net (that's the number 10 in the middle of
the letters)
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David Hendley on wed 20 mar 02
Bonnie, I call this die-within-a-die a "doughnut die".
I use common 1/8" Plexiglas, which is much more substantial
than a credit card, but still very easy to cut and work.
I've cracked a few, but they last a long time.
You can see photos in Diana Pancioli's "Extruded Ceramics"
book.
It's the only way to go; no reason to use all that material
for a whole new die, when you just need a small shape, and
you can whip up a new die in no time.
There is really no need to take the time to attach the small
plastic die to the larger holder die. Clay in the extruder will
hold it in place.
David Hendley
Maydelle, Texas
hendley@tyler.net
http://www.farmpots.com
----- Original Message -----
From: "Olivia T Cavy"
To:
Sent: Wednesday, March 20, 2002 9:28 AM
Subject: Blank Extruder Dies - Small Die Shapes
> For those of us who live in more populated areas, this is a very
> informative posting. Thanks, John!
>
> Here is one other thought on making small extruder dies like handles,
> rope shapes, feet, rims, etc. that I saw at Jim Robison's excellent demo
> at the North Star booth with Daryl Baird on Thursday and Friday afternoon
> in the commercial area of NCECA.
>
> Jim cuts out his die shape from the spent credit card/telephone card and
> places it on top of a more substantial open die. He uses an open shaped
> extruder die made of more substantial material such as the aluminum road
> signs David Hendley likes or the commercially produced open shapes sold
> for most extruders. He temporarily "attaches" the credit card with a few
> soft clay pieces, to hold it in place while the die is firmly attached in
> the extruder.
>
> The heavier duty die absorbs most of the pressure of the extruded clay
> but you can more easily cut more intricate shapes from the plastic credit
> card. Credit cards are relatively easy to "cut" with a drill or a
> Dremel. Even if they don't last forever, they're excellent to try out
> shapes.
>
> IMHO this little tip was worth the price of admission! I can't wait to
> try it.
>
> Bonnie
>
Olivia T Cavy on thu 21 mar 02
Hi Judith,
The lumps of clay hold the doughnut-die/credit-card-die in place until
the holder die is attached to the extruder. The credit card merely rests
on top of the stronger extruder die, inside the extruder barrel. Once you
start extruding, the pressure of the clay inside the extruder holds the
credit card in place, which is why David Hendley doesn't find it
necessary to use clay to hold the doughnut die in place.
As David wrote, this is not for 2-part dies for hollow extrusions. The
extruder die you'd use would be a your hollow tube circle or square or
hex WITHOUT the insert. I have a digital photo at home that I'd be happy
to attach to an email to anyone who wants it, if you send me an email at
home at my home email address: mou10man@sgi.net.
The goal is to choose a base extruder die made of "regular" die material
that is only slightly larger than the credit card or plexiglass cut-out
(die) you have made. Neither credit card plastic nor plexiglass by itself
is likely to be strong enough to hold up under the considerable amount
of pressure generated by all but the smallest extruders.
Bonnie
On Thu, 21 Mar 2002 01:41:21 +0000 Judith Frederick
writes:
> what holds the insert die in place if it is not attached anywhere?
> are we talking about shapes like a hollow tube circle or square?
>
>
> >Bonnie, I call this die-within-a-die a "doughnut die".
> >I use common 1/8" Plexiglas, which is much more substantial
> >than a credit card, but still very easy to cut and work.
> >I've cracked a few, but they last a long time.
> >You can see photos in Diana Pancioli's "Extruded Ceramics"
> >book.
> >It's the only way to go; no reason to use all that material
> >for a whole new die, when you just need a small shape, and
> >you can whip up a new die in no time.
> >
> >There is really no need to take the time to attach the small
> >plastic die to the larger holder die. Clay in the extruder will
> >hold it in place.
> >
> >David Hendley
> >Maydelle, Texas
> >hendley@tyler.net
> >http://www.farmpots.com
>
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at
> http://explorer.msn.com/intl.asp.
>
>
_________________________________________________________________________
_____
> 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.
Bonnie D. Hellman, Pittsburgh, PA
PA work email: oliviatcavy@juno.com
PA home email: mou10man@sgi.net (that's the number 10 in the middle of
the letters)
________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today! For your FREE software, visit:
http://dl.www.juno.com/get/web/.
Cindy Strnad on thu 21 mar 02
Dear Judith,
The insert die will be for a solid shape, not for a hollow form. It will be a
die for a handle or some sort of trim--that sort of thing. It is held in place
by the simple expedient of the clay pressing downward and only downward against
it and through it. It has no reason or stimulus to move sideways, and it can't
move downward because of its "frame" holding it in the extruder, so it stays
put.
=====================================
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
cindy@earthen-vessels-pottery.com
http://www.earthen-vessels-pottery.com
CM Critique discussion forum
http://www.earthen-vessels-pottery.com/toforum.html
Judith Frederick on thu 21 mar 02
what holds the insert die in place if it is not attached anywhere?
are we talking about shapes like a hollow tube circle or square?
>Bonnie, I call this die-within-a-die a "doughnut die".
>I use common 1/8" Plexiglas, which is much more substantial
>than a credit card, but still very easy to cut and work.
>I've cracked a few, but they last a long time.
>You can see photos in Diana Pancioli's "Extruded Ceramics"
>book.
>It's the only way to go; no reason to use all that material
>for a whole new die, when you just need a small shape, and
>you can whip up a new die in no time.
>
>There is really no need to take the time to attach the small
>plastic die to the larger holder die. Clay in the extruder will
>hold it in place.
>
>David Hendley
>Maydelle, Texas
>hendley@tyler.net
>http://www.farmpots.com
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