Comments by "Samson Soturian" (@samsonsoturian6013) on "Why NASA’s New 3D Printed Rocket Engine Matters" video.

  1.  @joeboxter3635  literally no one said that
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  2. Rotating detonation has nothing to do with 3D printing. That goon is just pumping a bubble
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  3. Why would it replace it? A CNC machine can make better parts faster and cheaper. 3D printers are mostly good for custom parts
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  4.  @gottfriedheumesser1994  There's also dozens of other manufacturing techniques that prove the same point. Forging, casting, welding, SmarterEveryDay recently did a video on a new "roboforming" machine that pinches metal into shape. But the bottom line is the metal powder needed to make 3d print parts is often more expensive than the finished parts using other methods.
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  5.  @gottfriedheumesser1994  3D printing doesn't allow building with more extreme materials. 3D printing restricts materials to what can be ground to a powder and melted by a laser. Also, the tolerances are terrible
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