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extruder question...

updated wed 10 nov 99

 

Bob Hanlin on sun 7 nov 99

------------------
Some time back I bought an extruder (North Star). To date I haven't pushed =
a
grain of clay through the thing. It's beautiful and others tell me it's a =
fine
tool but one question haunts me.
HOW DO I CUT THE ENDS SQUARE SO THEY'LL SIT STRAIGHT?
They say that there's no stupid questions but I feel like a cretin. I =
consider
the soft clay and it doesn't compute with me that you can cut a square =
bottom or
top. So, let me know how you do it. Particularly Joyce Lee, who is doing =
all
the things I've dreamed of doing but I like for things to stand up straight.
It's important to me.

Bob Hanlin, OKC
bhanlin=40ionet.net

flyifr on mon 8 nov 99

When I cut off the ends of the extruded clay, I use the wire that my
husband uses to
cut pots off of bats or the wheel. If you let the clay set up for
awhile before you try to
cut it square, it also helps. In other words, just cut it off however,
and later cut it square.
Kay

Ray Aldridge on mon 8 nov 99

At 05:25 PM 11/7/99 EST, you wrote:
>----------------------------Original message----------------------------
>------------------
>Some time back I bought an extruder (North Star). To date I haven't pushed a
>grain of clay through the thing. It's beautiful and others tell me it's a
fine
>tool but one question haunts me.
> HOW DO I CUT THE ENDS SQUARE SO THEY'LL SIT STRAIGHT?
>They say that there's no stupid questions but I feel like a cretin. I
consider
>the soft clay and it doesn't compute with me that you can cut a square
bottom or
>top. So, let me know how you do it. Particularly Joyce Lee, who is doing
all
>the things I've dreamed of doing but I like for things to stand up straight.
>It's important to me.
>

You'll probably get better answers, but mine has two parts. Use a fine
wire held tight in a coping saw frame to cut the extrusion from the
extruder (support the extrusion on a bat if it's a vertical extrusion.)
Make the extrusion a little bigger than it needs to, set aside to stiffen,
and then cut it square in a jig built for that purpose. One jig design
that works fairly well is to build a long three-sided wood box with a
narrow saw cut perpendicular to the long axis, running through the two
upright sides and cut slightly into the bottom piece. Lay the extrusion
into the box and see that it lies parallel to the long axis of the box.
Then when you move the wire down through the saw cut, the extrusion is cut
perfectly square, as long as it's stiff enough not to distort.

This may be unclear-- I wish I could draw a picture.

Ray


Aldridge Porcelain and Stoneware
http://www.goodpots.com

Pottery by Dai on mon 8 nov 99

Hi, Bob - I was intimidated by my extruder for quite a while, too. For
hollow extrusions, I extrude a manageable length, cut it off any-which-way
(this is a 2-person job, I've found---one to hold the extruded piece, one to
cut with a wire---anybody know another way?), anyway, then I carefully lay
it on my wedging table till it firms up somewhat. Then I put it in a miter
box (I think that's what they're called---the 3-sided long box with the
sawcuts in the sides) which has a piece of foam fitted into the bottom, then
cut through the sawcuts on the sides right through the clay to the foam,
and, voila! perfect 90 degree ends! The secret is in waiting till the clay
has firmed up so it doesn't bend all out of round (or square, or octagon)
when you cut it.
Good luck!
Dai in Kelowna, B.C., where we had our first, brief snowfall the other
night---gone by morning.
-----Original Message-----
From: Bob Hanlin
To: CLAYART@LSV.UKY.EDU
Date: Sunday, November 07, 1999 2:26 PM
Subject: Extruder Question...


----------------------------Original message----------------------------
------------------
Some time back I bought an extruder (North Star). To date I haven't pushed
a
grain of clay through the thing. It's beautiful and others tell me it's a
fine
tool but one question haunts me.
HOW DO I CUT THE ENDS SQUARE SO THEY'LL SIT STRAIGHT?
They say that there's no stupid questions but I feel like a cretin. I
consider
the soft clay and it doesn't compute with me that you can cut a square
bottom or
top. So, let me know how you do it. Particularly Joyce Lee, who is doing
all
the things I've dreamed of doing but I like for things to stand up straight.
It's important to me.

Bob Hanlin, OKC
bhanlin@ionet.net

Pam Duncan on tue 9 nov 99

a hint for handling those hollow extrusions....cardboard tubes, like paper
towel rolls, or wrapping paper rolls. Insert these into the hollow
extrusion as is hangs from the extruder, cut the extrusion above the tube
and use it as a handle to move the clay piece to a place to stiffen. You
can hunt around and find different diameters of the cardboard tubes to fit
just about any extrusion well enough to act as a handle. Pam in
WI....where we have not needed coats in November, yet!
-----Original Message-----
From: Pottery by Dai
To: CLAYART@LSV.UKY.EDU
Date: Monday, November 08, 1999 3:55 PM
Subject: Re: Extruder Question...


>----------------------------Original message----------------------------
>Hi, Bob - I was intimidated by my extruder for quite a while, too. For
>hollow extrusions, I extrude a manageable length, cut it off any-which-way
>(this is a 2-person job, I've found---one to hold the extruded piece, one
to
>cut with a wire---anybody know another way?), anyway, then I carefully lay
>it on my wedging table till it firms up somewhat. Then I put it in a miter
>box (I think that's what they're called---the 3-sided long box with the
>sawcuts in the sides) which has a piece of foam fitted into the bottom,
then
>cut through the sawcuts on the sides right through the clay to the foam,
>and, voila! perfect 90 degree ends! The secret is in waiting till the clay
>has firmed up so it doesn't bend all out of round (or square, or octagon)
>when you cut it.
>Good luck!
>Dai in Kelowna, B.C., where we had our first, brief snowfall the other
>night---gone by morning.
>-----Original Message-----
>From: Bob Hanlin
>To: CLAYART@LSV.UKY.EDU
>Date: Sunday, November 07, 1999 2:26 PM
>Subject: Extruder Question...
>
>
>----------------------------Original message----------------------------
>------------------
>Some time back I bought an extruder (North Star). To date I haven't pushed
>a
>grain of clay through the thing. It's beautiful and others tell me it's a
>fine
>tool but one question haunts me.
> HOW DO I CUT THE ENDS SQUARE SO THEY'LL SIT STRAIGHT?
>They say that there's no stupid questions but I feel like a cretin. I
>consider
>the soft clay and it doesn't compute with me that you can cut a square
>bottom or
>top. So, let me know how you do it. Particularly Joyce Lee, who is doing
>all
>the things I've dreamed of doing but I like for things to stand up
straight.
>It's important to me.
>
>Bob Hanlin, OKC
>bhanlin@ionet.net
>