Comments by "Withnail1969" (@Withnail1969) on "The Genius of 3D Printed Rockets" video.

  1. The most shocking moment for me was when he brushed off the fact that his rocket has 5 or ten percent extra weight because of the 3d printing process as though it wasn't important.
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  2.  @holobolo1661  I guess that's why they give youtubers tours of the factory not people who actually know about rockets. It's not a good sign when NASA is being derided in the video as a bunch of old fashioned idiots who don't know the new cool Silicon Valley ways to build rockets.
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  3. exactly, there is so much wrong with all this. 3D printing a large metal cylinder is ridiculous.
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  4.  @BlokeOnAMotorbike  Except not a single thing this company has produced has been tested in space.
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  5.  @ninja5879  i bet they havent and this is all just another scam like Nikola Motors and so many others.
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  6. @Reynaert No, solar and wind energy depend heavily on fossil fuels for their manufacture, transport, installation and maintenance. when cheap oil, coal and gas become hard to obtain, there will be no more wind turbines or solar panels. the wind and sun may be renewable but the devices we build to try and harvest that energy aren't.
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  7.  @JSLEnterprises  so because of the poor consistency of the 3d printed parts, everything has to be made heavier to compensate for that. so the rocket is a lot more expensive to make than a conventional rocket and can carry less cargo per kilo of rocket weight. on top of that, things on the rocket like fuel pipes are likely to fail because of the inconsistencies. wonderful, the only amazing thing is how these guys get funding.
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  8. they aren't launching anything.
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  9. can we even call it a rocket yet? have the parts been assembled into a ready to launch rocket?
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  10.  @gutzzgutzz6795  It's a barren irradiated wasteland. Cosmic rays and solar radiation hitting it with no atmospheric protection.
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  11. So wait, he's saying the roughness of the layers from the printing adds 5 or 10 percent to the weight? surely for aerospace that's too much.
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  12.  @jaxolotle  no there arent. you cant just create energy.
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  13. @Reynaert No chance. You can't make these things without fossil fuels.
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  14. except nobody is building one. it's just sci fi nonsense.
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  15.  @impguardwarhamer  the whole thing is nonsense, 3d printing is a gimmick and we can see how successful it is by the fact these guys have not launched a rocket in 6 years.
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  16. nonsense, you could have parts that need to be built by different factories with different specialities, for example.
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  17.  @payrimdwein9082  but this isnt a complex shape. its a cylinder.
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  18.  @jbirdmax  wow, is there anything they haven't invented by this point. but still somehow they haven't managed to launch a rocket.
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  19.  @johnortiz9789  but they arent early stage, they are 6 years old.
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  20.  @fotoel  there's no evidence it costs less.
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  21.  @fotoel  that's not evidence. i don't believe a word that comes out of his mouth.
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  22.  @fotoel  more power to you if you believe this scammer's empty claims. they havent printed or launched a rocket by the way.
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  23.  @HangryGiant  Yes, he did say those things. Let's see his rocket first, he hasn't shown us an assembled rocket or demonstrated that it works.
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  24.  @BlokeOnAMotorbike  Yeah right. There are no magic alloys that are 10 or 20 percent lighter than current ones and just as strong and also affordable waiting to be discovered, I'll put money on it.
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  25. what makes you think 3D printing a rocket body is cheap? it doesn't look at all cheap to me.
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  26.  @BosonCollider  how useful is that really i wonder. 3d printed metal parts aren't going to be either consistent enough or strong enough for many uses.
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  27.  @noothbag5728  you dont seem to understand. parts are often composed of lots of other parts made from different materials. you cant 3D print a car or a car exhaust assembly or a complete car engine. do you actually know anything about manufacturing?
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  28. who says it does?
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  29. he said it added 5 or 10 percent to the weight which surely is game breaking for aerospace.
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  30.  @peekachugaming3231  why would you even 3d print a huge metal cylinder? how can that make sense when you could just fabricate it from sheet metal the same way rockets have been made for decades.
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  31.  @trepidati0n533  3D printing a metal cylinder hundreds of feet long is going to be stupidly expensive compared to just making it out of sheet metal. This company has existed since 2015, claims to be able to build a rocket in 60 days and has never launched a rocket in 6 years. Looks like just another scam. And there are never going to be robot factories building rockets on Mars or any other extraterrestrial location. That's just sci fi nonsense. It's not possible and even if it was, who would pay for it.
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  32.  @trepidati0n533  We cannot colonise the solar system because there is nowhere except earth we can live without supplies from earth.
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  33.  @trepidati0n533  what don't you understand about that? we can't possibly support a colony on Mars when it would need hundreds of rocket flights a month for supplies from Earth.
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  34.  @trepidati0n533  it will never be possible for a Mars colony to support itself. Never. i also dont understand what significant changes you think there have been since 2011. not much has actually happened.
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  35.  @trepidati0n533  just telling it like it is.
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  36. it's either really cool or it's a lie. we don't really know, do we?
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  37. why would they? 3d printing isnt faster or cheaper than the normal manufacturing methods.
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  38. It probably isnt true.
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  39. Right but that;s not really necessary when you're just making a big cylinder,
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  40.  @kevinm3751  but it's not stronger, lighter, cheaper or built quicker. none of that is true. we know for a fact it's heavier from the mouth of the CEO.
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  41.  @DL-kc8fc  Without fossil fuels we simply don't have an economy and we won't have an electricity grid. We won't be able to power the grid reliably or repair it when cables are damaged by storms and ice. Electricity outages will spread and become longer in duration until there is no more grid.
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  42.  @DL-kc8fc  the economy will stop working except for basic subsistence. most will die of starvation.
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  43. I doubt there are any really revolutionary things to be discovered in the 100 year old field of rocket design. maybe a percent or two of extra perfomance here and there.
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  44. of course it would and its stupidly slow and expensive. this whole thing is a complete scam.
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  45. It isn't. progress ground to a halt more than a decade ago.
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  46.  @andreykuznetsov7442  no it won't because there will be no space travel in the future.
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  47.  @andreykuznetsov7442  because nothing really significant has been invented and deployed for decades now.
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  48. he told so many lies.
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  49. no we are not.
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  50.  @user-nw8jr1dk9p  Space X isn't landing nasa on the moon.
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  51.  @xMaticDualities  they are lying.
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  52.  @carlosandleon  3D printing is essentially adding nothing here except lots of extra cost.
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  53.  @ricomotions5416  no space company can. the last thing anyone wants is a heavy very expensive 3D printed rocket body. this is trash and the company should cease operations.
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  54. its a complete joke, what's next, 3D printing steel bars or something. this has scam written all over it.
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  55. yes, another obvious lie there. i wouldn't trust this guy as far as i could throw him.
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  56. of course it's stupid. just another scam like Nikola Motors.
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