 |
 |
|
 |
© 1999-2004
Association of Lifecasters International
All rights reserved.
|
|
|
|
|
|
FORUMS
|
|
|
|
|
  |
| Author |
Message |
Helen Hannah
Joined:
:
19-Feb-2007
|
Started On : 05-Sep-2007 at 02:30:04 PM, #Views : 6368
Topic Subject : RE: A new topic has been added-Re: A new topic has been added-Casting a hand and foot as one |
|
Dan
Clearly I am going insane!!
I did mean ankle, not the heel, the heel is held in the mother palm.
When I poured the first mould I filled it just over half full of plaster and
left it ten mins (I used water and plaster). When I went to pour the second
batch the first lot had moved away from the side of the alginate. As a
result some of the second pouring of plaster went down the gap and I ended
up with a bit of a mess on the mothers hand, where the detail had runs of
plaster on it, so I kind of had two depths to her hand if you see what I
mean.
I will use silicon when I make the coldcure mould. I have done this quite a
bit with pregant belly casts in the past which are much larger, but also 2D
not 3D and I am not sure how I will get the mould off the plaster when it is
dry. When I do the tiny hands and feet it comes off in one go, not so
confident with this happening this time around.
I can make a mould for the silicon to sit it, but again I am not sure of how
to do this. With the tiny feet it is easy to get them to keep thier shape
but if I make this larger mould too thick it will be hard to remove it and I
can't fix the support mold to the silicon until it is removed from the
plaster. Can I make the support mould when the silicon is still in place
and then remove that first, just to sit the piece on the mold before pouring
the coldcure?
So many questions, sorry.
Helen
-----Original Message-----
From: aliforum@lifecasting.org [mailto:aliforum@lifecasting.org]
Sent: 05 September 2007 16:01
To: helen.hannah@ntlworld.com
Subject: A new topic has been added-Re: A new topic has been
added-Casting a hand and foot as one( Message No. 1762)
------------Silica-Free & Oh So GREEN------->
NEW! MoldGel SILFREE. A revolutionary formula.
Made with all food-grade ingredients. It nourishes
the earth when discarded. 3-to-1 mix ratio yields
twice the volume as those 1-to-1 brands. Delayed
shrinkage for delayed casting - so creamy smooth, too.
To learn more about it click here
---------------------------------------------->
Hello Helen Hannah
Post Date : Wednesday 05th of September 2007 11:00:04 AM
Posted by : "Dan Spector" dan@archicast.com
Re: A new topic has been added-Casting a hand and foot as one:--
Helen
Clearly you've got to block one hole. Here are other methods: Prepare a
shallow dish of plaster+fiber and set one hole squarely down on it. Or:
laminate the hole over with any fibrous stuff dipped in plaster. Or: set
mold on a piece of really soft real clay and bring the edges of the clay up
and smear into the support mold. Umm, you do have a support mold, right? No
mention of it.
Plaster does not shrink. After it takes a set it expands. If you think it's
shrinking, something weird may be going on.
Holes: one at wrist and one at "heal" [heel?] Should be at ankle, yes? Heel
is touching palm right?
This is not a big mold as such things go but maybe a little out of your
comfort zone now. I'd be using a thickened silicone I could paint on and
then spatula on. Then a real plaster/fiber support mold. You would eliminate
one hole when you make the secondary mold.
Let us know--
--
Dan Spector
901 323 8717
http://www.archicast.com/Lifecast-index1.html
> From: aliforum@lifecasting.org
> Date: Wed, 5 Sep 2007 09:30:59 -0400
> To: dan@archicast.com
> Subject: A new topic has been added-Casting a hand and foot as one piece(
> Message No. 1760)
>
> ------------Silica-Free & Oh So GREEN------->
>
> NEW! MoldGel SILFREE. A revolutionary formula.
> Made with all food-grade ingredients. It nourishes
> the earth when discarded. 3-to-1 mix ratio yields
> twice the volume as those 1-to-1 brands. Delayed
> shrinkage for delayed casting - so creamy smooth, too.
> To learn more about it click here
> ---------------------------------------------->
>
>
> Hello Dan Spector
>
>
> Post Date : Wednesday 05th of September 2007 09:30:58 AM
> Posted by : "Helen Hannah" helen.hannah@ntlworld.com
>
> Casting a hand and foot as one piece:--
> can anyone help me? I have been lifecasting for about three years now
and
> have just got a commission for a piece with Mum holding a childs foot in
the
> palm of her hand. I took two casts earlier this week, and one came out ok
> but I am a perfectionest and would like to take it again. Before I do so
I
> would like some advice on how to pour the plaster into the alginate mould.
> The piece is being made in one go, ie I am casting the hand and foot
together
> and this leave me with two exit holes, one at the wrist and one at the
heal.
> I can't get the two exit holes in the same place without effecting the end
> look of the piece in a bad way, but I am not sure how I pour the plaster
into
> the mould in one go without having it fall out of one of the holes.
> I tried pouring the plaster in two goes, but even just leaving it 10mins
the
> plaster had started to shrink and I got uneveness on parts of the mould
where
> I had a second broken layer of plaster on the back of the hand. Also
pouring
> twice leaves a line where the first lot of plaster had started to set.
> I tried using clay to plug up one of the holes, but it is really hard to
get
> it to stick to the alginate and it fell out while I was pouring and I
ended up
> in a right mess.
>
> I know I could cast each piece seperatly, but the mother wants to be
holding
> the childs foot, and I think if it were done in two pieces then the foot
will
> never fit properly. Also I would like the finished piece to be set
together
> and I am not sure about the complexties of sticking them together during
the
> manufactour stage.
>
> On the other hand, I am going to cast these pieces in coldcure metal and
> getting the silicon mould off such a big piece with tiny exit holes might
be
> hard.
>
> Oh gosh, now I am rambling. Can anyone help me with my queries? I'm
quite
> happy just working with it and seeing how it comes up, but any expertise
would
> be appreciated.
>
> Helen
>
> ALI is an international organization whose members are engaged in the art
and
> creative industries. Its purpose is to promote the art of life casting
create
> public awareness of this unique art form, provide its members with forums
to
> exchange information, resources to enhance their effectiveness and advance
> opportunities for their artistic success.
ALI is an international organization whose members are engaged in the art
and creative industries. Its purpose is to promote the art of life casting
create public awareness of this unique art form, provide its members with
forums to exchange information, resources to enhance their effectiveness and
advance opportunities for their artistic success.
|
|
|
| |
|
|
|
|
)
)
)
)
)
)
)
)
)
)
