Sad day
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Any sand type mold where you are pouring liquid metal into it, the mold get destroyed each time. There are master molds for the production molds.
The molds of many cast metal pieces are destroyed in the process, then recycled into new molds. I wouldn't be at all surprised if this is true.
x-metal is made using investment casting.
in the video they say the cast is ceramic, i also heard ceramic from someone at the o store.
it also states 3 weeks for one pair start to finish, that's just insane. no wonder lux is changing the format.
Investment casting uses wax forms to create a ceramic mold shell, kind of like a custom crucible mold. They melt out the wax and pour in titanium and beat the piss out of it to break off the ceramic. Which is why they say the mold is destroyed every time.