3D Printed Rockets are Genius, Here's Why (Relativity Space)

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[@Oldman5261]

15:33

[@valecasini]

Relativity it's not part of NASA 😅

[@alflud]

Corrugations are a well known method of adding structural stiffness to what would otherwise be a 'panel'. This is exactly where 3D printing shines, it can add corrugations where other processes can't - or much cheaper than other processes, such as press-forming with dies and molds.

[@k.sullivan6303]

Amazing to be able to print such a structure horizontally. Perhaps it prints wider horizontal segments kind of like a tooth, then starts on another tooth and so on, after the 4th or 5th tooth is done, the 1st tooth is already set (semi hardened), then by the time it gets to the 6th or 7th tooth (going clockwise) the 1st tooth is much harder, and the second tooth is set. The big stargate looking printer does not need to move, just the nozzles within it. Anyway... I'm just guessing. Perhaps the printing is going on by hundreds or thousands of nozzles all at the same time. Perhaps the layers being printed are only 1mm thick and thus might be able to stand up to gravity pulling down on the printing. So I guess that is what I'm wondering is how they stop the printing material from slagging due to gravity?

[@tomo8235]

could 3d printing rockets be possible IN space ? like would 3d printing be a more effective way of building bigger ships within space? or is it not possible

[@WilliamHostman]

The wavy bulkhead is machinable, stampable, and/or pressure workable

[@MrDark21knight]

Misleading title. Relativity space is a Private company.

[@alexanderthomas8784]

This was a great episode!!!! Loved looking at the new rocket and the preview for a next episode! Can't wait for the next

[@floydbertagnolli944]

Please do another video soon about Relativity’s plans for 3D printing on Mars!

[@rdmcfoxinator2131]

@

[@WWeronko]

As a retired manufacturing plant manager, I looked over 3D printing and saw great possibilities. However, making fuel tanks seems a suboptimal way to use 3D printing. As far as I understand the process, 3D printing has a series of intractable issues including: the surrounding metal Heat Affected Zone (HEZ) creating reduced flexibility; microstructural changes leading to the metal becoming harder and more brittle; residual stresses into the metal, which can further reduce its flexibility. These stresses result from the differential cooling and contraction of the metal as it solidifies after printing; 3D printing can sometimes have defects such as porosity, inclusions, or incomplete fusion. These defects can create weak points making it less flexible and more prone to failure. The thickness of the printed material can also affect flexibility. Thicker materials tend to be less flexible than thinner ones, and 3D printing often has difficulties maintaining uniform thickness. When compared to rolled metal, 3D printing seems more trouble than it is worth.

[@DavidMcCalister]

Totally agree about the success! Really amazing seeing next steps and new competition in the industry.

[@RazVanPaulOfficial]

Wow! Hope they can make it a reality

[@clydecox2108]

I’m so stoked about this 3D Printing of rockets.

[@petrokansis]

This is how science is moving forward with leaps and bounds to 3d printing and have open source will reallly bring them to to the cutting edge

[@vanjapuskaric9860]

This is a great channel as Terran is one hell of the name for a rocket. Terran is a typical red wine from Istria (my peninsula) and is guaranteed to take you into orbit every time you open the bottle. Istria is also a V-shaped peninsula like the Relativity logo and resembles a bunch of grapes. And the rocket with methane fuel is not far from a bottle with ethanol. And the Istrian land where the Terran grows is as red as Mars (even more). As I see it, this rocket is a tribute to Dionysius. Those guys got nailed, no matter if it works or blows up

[@rgberry69]

Awesome video. Thank you.

[@Heinickens]

8:00

[@billweberx]

Kudos to Relativity Space for their great new technologies and new ideas for rocket production. I fear however that by the time they ramp up, Starship will also be in production and will wipe out all the other players due to the low cost per kg to low earth orbit. There's really no competition for Starship.