I assume that all of the support gear (turbopumps, etc.) are not 3D printed. I'd be super impressed if the fuel and oxidizer injectors were printed. Anyway, th

I assume that all of the support gear (turbopumps, etc.) are not 3D printed. I'd be super impressed if the fuel and oxidizer injectors were printed. Anyway, there's a bunch of stuff they're not including in this statement; it's like "we can print your car's engine block" but glosses over the additional whirly-sparky stuff that turns a lump of metal -- even if it is in the right shape -- into a functional engine.