I got myself inducted into the plaster room.
I decided to plaster mould my cow horn, I found I learned a lot of important techniques and principals. Such as when building the clay up in the beginning, you really must not build it further than the centre of a curved surface other wise the mould will break when pouring plaster over it.
Creating a pouring hole was also important, And especially considering the shape of my horn I needed to make sure the shape of the spout didn’t flow similarly to the horn.
My horn ended up being a 3 part mould due to a small over hang at the top and just its general awkward shape. I did forget to put registration guides to help the moulds sync up on the final piece. whoops!
I was amazed at how fast plaster dries and how quickly it mixes, really odd stuff.
Never the less, my mould went pretty well.
After doing some slip casting I have some pretty good results.
Next I think I will look at glazing them.