This week I made my first ever mould. The Haunt's puppets will require push moulds to be made so that I can keep the replacement mouths consistant and so the, god forbid, I should squish Clara's face, I can just cast another :)
Some of you over on my instagram feed - @joshjobrien were asking me about the process, so I thought for this weeks blog post, I'd throw together a rough and ready process study of how to make a two part plaster mould.
Check it out! -
So first off, we need a postive model to mould. For this I'm going to use the first maquette I made of Clara. It's a good sculpt that captures her design very closely. Anyway, I sculpted her from plasticine originally and over time she's gotten bashed and beaten a little, so I cleaned her up and set to work making her a more permanent fixture.
The idea moving forward is to mould the sculpt into two haves, the top with the face detail and the bottom, or back of the head. That way we will have two halves that can be separated to release the sculpt from within.
If you're confused, hopefully all will become clear as we go along.
Then we add clay material (I used plasticine) around the model, creating a water tight seam around her about half way up. What we're effectively doing is cutting her in half with clay, so that only one half is exposed.
I've used foam board here as it's quick, cheap and easy to cut to size.
It's then pushed in against the clay and that connection between the clay and the boards then filled to make the seams watertight.
These are also hot glued together and to the base to make it solid as a rock!
Leave for about an hour to cure, and harden. The temperature of the environment will effect how quickly the plaster will dry as well.
Remove the clay that we used to lay up the sculpt.
You can see the results of this little test on the picture on the right, along side the original sculpt. All in all, for my first mould it was quite successful. The mould had a few air bubbles appear in awkward places and I learnt alot to take forward for the next one!
So what next?
Well I'm going to take another casting from this mould and polish and adjust it to make a new master sculpt of what will be the end puppet. I will then mould that sculpt and produce the fully working puppet head for Clara's puppet.
But of course I'll be documenting that too so stay tuned. As always, thanks for dropping by, if you have any questions or something in here is unclear, don't hesitate to get in touch; I'll help anyway I can.