Re:China's Moon mission sees first seeds sprout
by hamilyon2 on Tuesday January 15, 2019 @09:07AM
(#18911164)
Yes, that is how we do it now. But what if you only need 3000 ball bearings a month, would other process be more feasible, since the fact it is not economical at scale can be ignored?
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Re:China's Moon mission sees first seeds sprout
by adrianN on Tuesday January 15, 2019 @09:26AM
(#18911271)
You still need high quality source materials and low mechanical tolerances even if you make them by hand. You obviously don't want to recreate planet-spanning supply lines, but even getting good steel from ore is highly nontrivial.