BAMS – Medal project – Recasting hands (male and female)Posted: February 10, 2015
After my first attempt at casting my hand, I realised that I would need to recast my hand a second time and make the disc base of the medal part of the mould, rather than a separate piece I would then have to attach. To make the base, I laser cut an 8cm disc from acrylic plastic. I decided on an 8cm diameter through a mixture of prototyping and sketchbook work, with the aim of the medals being small enough that they can be held in the hand, but large enough that it frames a reasonable portion of the hand itself.
It was then a matter of repeating the alginate process, with both mine and my friend Ambrose’s hand, who will be the male hand of the medals. With the disc as a base I also had to be more precise with the positioning of both mine and Ambrose’s hands, making sure that the fingers reach the top edge of the disc and towards a middle point between the both discs. The female (my) hand is on the right side of the disc, and the male (Ambrose’s) hand is on the left side, so that they are leaning towards one another.
Then once the alginate had set, I filled them with plaster to make positives
After letting the plaster set overnight, leaving the alginate on a damp flannel to try and keep it at least partially damp so as not to dry out completely, it was then a matter of carefully removing the plaster from the mould.
I wanted the plaster versions to be as accurate to the final medals as possible, so it was important to make the edge clean and precise. As well as this, there were a series of small holes in the surface of the medals, especially evident in the male hand, which I filled in with plasticine. These holes were caused by air bubbles in the plaster, but after having filled them in with plasticine it shouldn’t make a difference to the silicone mould.