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Paul Breed, from Unreasonable Rocket team - https://x.com/unrocket https://x.com/unrocket - mentioned, a decade or so ago, that he printed some aluminum engines
by avmich 2y ago
Paul Breed, from Unreasonable Rocket team - https://x.com/unrocket https://x.com/unrocket - mentioned, a decade or so ago, that he printed some aluminum engines for regenerative cooling by hydrogen peroxide for ~$1000 . Another story from http://rocketmoonlighting.blogspot.com/2010/ http://rocketmoonlighting.blogspot.com/2010/ is about a small engine cooled with nitrous oxide - and manufactured entirely on personal money, also quite some time ago. I think these numbers are still indicative of the current prices.
- quartesixte 2y agoAluminum is magnitudes cheaper than Inconel. And since volume is cubic, and pricing mostly on based on powder weight, you are about an order of magnitude or two off for the size of engine ABL is producing here.
- avmich 2y agoThat's correct, but it's still interesting that you have that opportunity to shave - slash? - costs here. And also the other engine mentioned isn't an aluminum one.
- aaronblohowiak 2y agoWould $100,000 still be a “steal” for all that? (Especially with repeatability and nimbleness) ?