Connie Woodward on sat 26 oct 02
I have a new extruder and I'm having problems with it....
alot of times the tubes will get splits as they dry, same
thing if I cut tubes into slabs, I will get splits the
down the long length... what am I doing wrong? I am guessing
that maybe the little metal holder gizmo for the center is
causing them? am I using to dry/wet of clay? I am spraying
the inside of the extruder tube with WD-40 before I load the
clay, could this be part of the problem?
thanks for any ideas,
Connie
--
=================================================
Connie Woodward Karattopp Pottery 713-256-5907
Navasota, TX www.karattopp.com connie@karattopp.com
Pottery by Dai on sat 26 oct 02
Connie - try just wetting the extruder with water, instead of WD40. I think
the oil in the WD40 probably gets into the"split" caused by the metal gizmo
for holding the center of the die, and the clay can't quite seal itself
together again.
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: "Connie Woodward"
To:
Sent: Saturday, October 26, 2002 8:36 AM
Subject: problems with north star extruder
> I have a new extruder and I'm having problems with it....
> alot of times the tubes will get splits as they dry, same
> thing if I cut tubes into slabs, I will get splits the
> down the long length... what am I doing wrong? I am guessing
> that maybe the little metal holder gizmo for the center is
> causing them? am I using to dry/wet of clay? I am spraying
> the inside of the extruder tube with WD-40 before I load the
> clay, could this be part of the problem?
>
> thanks for any ideas,
>
> Connie
annabelle on sat 26 oct 02
Connie, I had the same problem with mine. I used a nut between the inner
die part and the metal holder. That allowed enough room for the clay to
compress back together after being seperated by the metal piece.
Annabelle in Naples Fl, where it's still hot and humid......
Brian Crocker on sun 27 oct 02
The "metal 'Gizmo'" is known as a Torpedo in the industrial part of pottery.
May I suggest that you don't use oil based products in the extruder
{although many do}.
Water is the best lubricant in the machine.
Failing that use a moister clay.
Regards,
CROC.
----- Original Message -----
From: "Pottery by Dai"
To:
Sent: Sunday, October 27, 2002 4:07 AM
Subject: Re: problems with north star extruder
> Connie - try just wetting the extruder with water, instead of WD40. I
think
> the oil in the WD40 probably gets into the"split" caused by the metal
gizmo
> for holding the center of the die, and the clay can't quite seal itself
> together again.
> 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: "Connie Woodward"
> To:
> Sent: Saturday, October 26, 2002 8:36 AM
> Subject: problems with north star extruder
>
>
> > I have a new extruder and I'm having problems with it....
> > alot of times the tubes will get splits as they dry, same
> > thing if I cut tubes into slabs, I will get splits the
> > down the long length... what am I doing wrong? I am guessing
> > that maybe the little metal holder gizmo for the center is
> > causing them? am I using to dry/wet of clay? I am spraying
> > the inside of the extruder tube with WD-40 before I load the
> > clay, could this be part of the problem?
> >
> > thanks for any ideas,
> >
> > Connie
>
>
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