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Also thanks for the repousse suggestion. My early efforts with a hammering approach were a bit frustrating and very slow. Cheers Craig

Hi Mike, Thanks Yup, tool steel isn't feasible for this project. Think Urethane upper die is approved now. Will experiment with various lower die materials. Concrete may be worth a go it's certainly the easiest material to source and work with but I'm concerned about tearing the metal and...

Hi berkshire, I'm also very interested in your suggestion of ceramic dies, from what I've briefly read, this might not be possible to achieve using a potters kiln in a DIY kind of way.

Many thanks Berkshire - will follow your link through and read up. Was just searching for at coining die information so this Guerin trapped rubber process will be really useful in improving search results too.

Hi, I'm thinking of trying to form some thin metal sheet between two dies in a press. This would be for quite short runs so low cost and ease of tooling up are more important than durability. Here is an example of a form cast in lead. I'm thinking of casting the dies in aluminium but would...

Hi, I'm thinking of trying to form some thin metal sheet between two dies in a press. Here is an example of a form cast in lead. I'm thinking of casting the dies in aluminium but would also like to consider composites. I believe that many industrial Dies are made using one tool steal and...