/diy/ - Do It Yourself

>>1934215

Interesting stuff Op. I don't have to agree with you on everything to find a reason to be constructive. I have wondered what the story was with this shape for a long time now. Never heard of it being analogized to the biblical holy grail but I find a lot of what you're saying interesting and overall the project is a worthy endeavor.

The shape appears in nature quite a bit. Biomimicry does yield some useful inventions but even if it just sparks some curiosity it's worthwhile. Have you ever noticed some insect wing covers are covered with this thousands shapes resembling these grail cavities?

Do not worry about funding. You have almost everything you need already by the looks of it. There are a number of ways you could fabricate these things as well. Lookup metal spinning:

Metal Spinning a Bowl on a Lathe:
https://www.youtube.com/watch?v=FHvtieU4-7Y

I think you can use your wood lathe to do this. You can even make the wooden blanks for this on the lathe. You can buy or build the pulley/bearing tool they use. The idea would be get 80/20 copper/tin sheet cut to discs and spin form it. Scale the grail object based on the thickness of the material you're able to get for your tests. That way, you'll have more uniform wall thickness. You can then try different thicknesses of sheet and adjust the scale accordingly. The phenomenon should work at smaller scale too, so you will save money making smaller thinner test models across a wider range of shapes and thicknesses.

Form the 2 halves then braze together with silver solder or something.You could also try TIG welding it if it has to be all 1 material. I bet it will still work even with a brazed connection.

What type of mold material were you going to use if you had cast this?

If you want it to be "perfect" surface finish you'll want to use ceramic shell molds and waxes instead of sands and foams.

What dimensions are you trying to build this to?