Hi.

So i am making my 2 part mould at the moment, having watched a lot of videos. Theres a few things I dont get;

The need for a small radius at the interface. I would say to help demoulding and laying of the cloth, but surely it will transfer as an inclusion to the final shelled part  ?

Following my diagram below shows the square plug, with flanges added, 1 side of the mould made from that flange, the 2nd side made off the 1st, the two moulds having cloth layed in and mounted together.



Ok so in this process I see two problems and would really appreciated someone explaining;

The part needs to be the same outer dimension but if I am laying cloth between the flange then I am increasing the size of the part ?

With the 1st mould, could i take it off the plug, then tidy up the 1st mould, then reattach it to the plug, fill the edges with plasticine and then make the 2nd mould ?

Thanks for the help. Will post photos up shortly.