Edm’d cutting seems good for multiple parts that would be redundant in making a production setup, but for one off parts, it doesn’t seem economical nor useful. On the trigger, wouldn’t you need to start out with thicker material then needed which would require machining just to get the right thickness where your finger would touch? As for the hammer….still so much shaping to do. I’m not up on the latest on Edm but I thought it was just for cutting, not shaping in a 3D .