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Originally Posted by csimon
Have you experimented at all with the opposite of that design ...like a concaved pyramid? I'm not sure how malleable copper is but it seems it would be efficient to stamp once rather than tool over and over for production. Just a thought.
Also ...is delrin a plastic at all or is it more of an alloy? The little I've seen on it isn't very clear. I was thinking in lines of a 3d printer for precision shapes ...the resolution has come way up in the past year.
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I can't see stamping pyramids into the base working at all unless you do it Cathar style like the Storm with drilled cups and a pyramid pin in the middle instead of a round one. I just invision water getting trapped in the pyramid shaped cups and having to boil to get out.
Cathar has the best design I think as far as cups in the base.
Delrin is a plastic. Comes in black and white mainly. I have seen grey on e-bay.