This is absolutely fascinating for me!!!
1)Is that plasticine in half the moulds Neil?
2)How do you press the part to be moulded into it without it breaking? Here I am thinking of the stair units.
3)One further question if I may - how do you decide between what parts will have split moulds and which will not?
As you can guess, I am about to embark on this little exercise soon with the Free Enterprise parts.....
Hi Carl,
1) yes it's plasticine.........I use modellers/moulders plasticine.....bought it years ago from Tiranti's in Reading, but you can use children's play plasticine ( but not playdo)but it's far more expensive pound per pound that moulders p.
2)I put the plasticine into the mould first, and then put the mould box onto the radiator to warm up.......just a little and then press the master into the plasticine and finally go around the edges with a thin scriber or end of a needle file to make a close fit between the plasticine and the master.
3)I chose those without a split mould such as the boxes and the bitts and capstan because they have all flat bottoms and it was the bottom of each master that touches the plasticine and will be open once the rubber has set......will show you that bit tomorrow when I have poured the rubber and it has set......it will explain easier in photo form.