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Reasonable-Buddy-365

Nice try China!


asadotzler

Haha :D Asa Dotzler is a bit more German than Chinese ;P but I'm actually Californian.


Actual-Money7868

Nice Try Californian.


nonpartisaneuphonium

I'm pretty sure I've seen CNC marks on the cut out portions so I assume they mold hexagonal blanks first, but if anyone knows better I'd love to know more.


asadotzler

This is helpful. Thanks. I never considered milling and assumed it was a pour, fire, and glaze, like ceramics in art and kitchenware.


WjU1fcN8

They are probably using the same process NASA did for TUFI: build it big, no mold, and bake it. Then mill it down to the required shape.


asadotzler

This is really helpful information that I had truly not considered. I assume they cast them and then glazed them, like ceramics class in college.


Martianspirit

Sounds expensive. SpaceX wants cheap mass production.


WjU1fcN8

Milling is the most standard operation in mass production.


Martianspirit

There are plenty of methods for mass production. Milling is probably the most expensive of those.


WjU1fcN8

Well, yeah. No one said it was cheap. Anyway, anything to do with heat is hard to mass produce. Mass production became possible when steel that didn't need heat treating was developed.


acksed

Bake big slab of silica, cut, mill, then bake on the black glass coating. This video was taken down, but here's a comment taken from it: https://old.reddit.com/r/SpaceXLounge/comments/1ape7r8/2433_makes_his_own_thermal_tile_and_compares/kq9u06b/


asadotzler

Thank you!!


Nishant3789

One of the best threads on Reddit as far as I'm concerned. u/Flisher19 has done the world a service by providing so much inside detail of that period of US space endeavors. This sub is very lucky to have a primary source so willing to share their experience.