I have now poured both Plaster parts and removed the Plasticine from one side ready to pour in the silicon. Below are the stages I recorded doing this-
I have also made the plaster moulds for Neptune and Uranus from the CNC cuts. I had to oil them both to make sure the plaster didn’t stick to the model board. The moulds were two part moulds, so I had to divide the form into two. I made sure the seam was along the edge of the piece rather than in the middle of the edge as I am intending to use Porcelain which has a memory so I would never be able to remove the seam, whereas if it is already along an edge it will be much easier to conceal.