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Indian startup 3D prints rocket engine in 72 hours

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Re: Indian startup 3D prints rocket engine in 72 hours

#241

Post by ETH_start »

toss1 wrote: post #168
ETH_start wrote: post #154

Earlier quoted context omitted.

What the name implies if interpreted without any context pales in comparison to the repeated and explicit instructions and warnings given to the driver that clarify that the driver should always be in control.

Yup. It's "we'll take the profits from selling it as something that it is not.". While simultaneously they take every step to ensure that when things go wrong when it inevitably turns out to NOT be what they claimed, the entire burden and responsibility is not on them, but on you.

More conspiracy theories. The driver assist disengaging had nothing to do with a ploy by Tesla to shift responsibility. A driver taking control of the car 0.1s before impact is a result of inattentive driving.

Like I said in the other comment:

There is absolutely no other company in the world where a predictable and disclosed shortcoming of the driver assist combined with the failure of the driver to fulfill their responsibility to be in control, would be blamed on the driver assist program.

Both Musk and Tesla are far from perfect, but the lengths that people go to to attack them is obviously agenda-driven and a result of emotions

Re: Indian startup 3D prints rocket engine in 72 hours

#243

Post by hliyan »

guax wrote: post #33
Etheryte wrote: post #26

> The machine also automatically outputs a report that details any deviations during printing, removing the need for postfabrication qualification. Anyone who's previously worked with 3D printing knows that this simply does not pass any kind of a sniff test. Both preventing and detecting internal defects is one of the, if not the hardest problem in 3D printing. There are many large companies trying to find ways to re…

Titan submersible sound detection system vibes.

What does "vibes" mean here? Are you saying that this is a comparable level of negligence, or that it simply personally reminds you of the former case, and nothing else? There are better words available than "vibes".

Re: Indian startup 3D prints rocket engine in 72 hours

#244

Post by fragmede »

DrFalkyn wrote: post #233
sandworm101 wrote: post #187

Earlier quoted context omitted.

>> cruise missile dropped at altitude where a failure isn't a big deal. If failure isn't a big deal, then the weapon should no have been used. An ALCM costs millions. The destruction it causes is part of a larger battle plan. Should it not work properly then friendly forces may die. Should it work properly then enemy forces may die. The effectiveness of such a weapon is never not a big deal.

If it’s that critical then they aren’t launching one cruise missile. If system A costs 1k quid but only works 50% of the time, while system B works 99% of the time but costs 10k quid, system A actually makes a lot more sense. On average you are going to spend a lot less money for the same outcome.

What's the price on weapons technology falling into enemy hands? A dud is a gold mine of data for an enemy's reverse-engineers.

Re: Indian startup 3D prints rocket engine in 72 hours

#245

Post by ReptileMan »

nordsieck wrote: post #158
jes5199 wrote: post #156

Earlier quoted context omitted.

this might be 20th-century thinking. if you can build enough copies of a rocket cheap enough, maybe disintegrating a bunch of them isn't a showstopper

> if you can build enough copies of a rocket cheap enough, maybe disintegrating a bunch of them isn't a showstopper The problem with that idea is that you won't be legally allowed to launch again until you root cause and fix the failure, which can take months (or years if you're Blue Origin). Also, your insurance rates tend to go up a lot when your rockets blow up regularly, which tends to push customers away. In pra…

>The problem with that idea is that you won't be legally allowed to launch again until you root cause and fix the failure,

Only if you want to launch from US. I guess with a 160 countries there will some with the right area for a launch pad with way laxer requirements.

Re: Indian startup 3D prints rocket engine in 72 hours

#246

Post by nordsieck »

ReptileMan wrote: post #245
nordsieck wrote: post #158

Earlier quoted context omitted.

> if you can build enough copies of a rocket cheap enough, maybe disintegrating a bunch of them isn't a showstopper The problem with that idea is that you won't be legally allowed to launch again until you root cause and fix the failure, which can take months (or years if you're Blue Origin). Also, your insurance rates tend to go up a lot when your rockets blow up regularly, which tends to push customers away. In pra…

>The problem with that idea is that you won't be legally allowed to launch again until you root cause and fix the failure, Only if you want to launch from US. I guess with a 160 countries there will some with the right area for a launch pad with way laxer requirements.

> I guess with a 160 countries there will some with the right area for a launch pad with way laxer requirements.

Good luck with that.

Exploding rockets are a very serious public safety risk since they're >90% propellant. Even Russia grounded Soyuz until they root caused its launch failure. From what I can gather China has the same policy, although they're very quiet about any launch failures that happen, so it harder to tell.

Re: Indian startup 3D prints rocket engine in 72 hours

#247

Post by simonebrunozzi »

Etheryte wrote: post #26

> The machine also automatically outputs a report that details any deviations during printing, removing the need for postfabrication qualification. Anyone who's previously worked with 3D printing knows that this simply does not pass any kind of a sniff test. Both preventing and detecting internal defects is one of the, if not the hardest problem in 3D printing. There are many large companies trying to find ways to re…

Check out Roboze on this. (disclosure: investor). They do a fantastic job with this, and in fact their 3d printing machines are widely used in aerospace and defense.

Re: Indian startup 3D prints rocket engine in 72 hours

#248

Post by Stevvo »

constantcrying wrote: post #63

>Constructing a rocket engine using conventional approaches can take months, followed by extensive qualification testing to ensure it meets the required specifications. Using a metal 3D printer from German company EOS, Agnikul produced its engine in roughly three days. Agnikul printed the engine out of inconel, a high-performance alloy of nickel and chromium that can withstand high temperatures and mechanical loads.…

It worked. The engine flew. Mission success. Is that not qualification enough? As long as nobody is put in danger.

Re: Indian startup 3D prints rocket engine in 72 hours

#249

Post by stainablesteel »

constantcrying wrote: post #185
stainablesteel wrote: post #126

Earlier quoted context omitted.

i dont know about that part, but they 3d print i don't honestly believe there's anyone building a rocket like this that isn't concerned about the rockets success

Why are they saying they don't need QA then? Sure, you can use whatever appropriate manufacturing processes you want. But none of them can replace QA.

i dont believe relativity space has said this, and i dont speak on their behalf

i have no idea what they do, im not in this industry

Re: Indian startup 3D prints rocket engine in 72 hours

#250

Post by sjsdaiuasgdia »

ETH_start wrote: post #237
sjsdaiuasgdia wrote: post #170

Earlier quoted context omitted.

Shame about the "Full Self Driving" branding They can put whatever disclaimers in the manual but their branding is giving a different message. It's a message Tesla wants the customer to hear: "sit back and relax, the car drives for you." The branding does not communicate that the driver needs to be just as aware and engaged as they would be if they were driving on their own, and be ready to take control of the vehicl…

What the name implies if interpreted without any context pales in comparison to the repeated and explicit instructions and warnings given to the driver that clarify that the driver should always be in control

There's a reason "it does what it says on the tin" is generally seen as a positive aspect of a product.

When a product's naming and branding is well aligned with its actual utility, it builds trust with the customer. The customer doesn't feel like the seller is trying to pull a fast one on them.

Tesla chose their branding direction and Elon chooses to make his "optimistic" predictions that have made it sound like true self driving is right around the corner for years. That people take this impression away is no fault of anyone but those that put the impression out there in the first place.

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