Just another perfect resin part...

...that i build! the coin slot for r2:

most people don´t take the time for building the silicon mould, but it´s the essential thing to do so!!
and of course the way how to build a two part mould.

the next step is to take your time while adding the resin to the silicon mould. if you don´t do that, bubbles of air will remain in the mould and you have imperfections in the resin! not good!