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Helen Hannah
Joined:
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19-Feb-2007
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Started On : 05-Sep-2007 at 09:30:58 AM, #Views : 6970
Topic Subject : Casting a hand and foot as one piece |
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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
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