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$96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor (github.com/novatic14)
140 points by ZacnyLos 2 hours ago | hide | past | favorite | 74 comments
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This is the coolest thing I've seen all week, possibly this month

This is bonkers. Video on GitHub: https://www.youtube.com/watch?v=DDO2EvXyncE

I'm impressed by the kid's engineering and gumption, but I think he's a bit.. misguided, if you'll pardon the pun. The video ends with shots of Russian drone war, and, bizarrely, photos of David Koresh.

I don't think this ends well.


> The video ends with shots of Russian drone war, and, bizarrely, photos of David Koresh.

You're omitting that the end of the video also features pictures of Martin Luther King, Vietnamese civilians during America's invasion of their country and Afghani Mujahideen freedom fighters during the Soviet Union's invasion of theirs; I think he's trying to make a point about technology enhancing the capabilities of people who are in any conflict with conventionally powerful forces, not an endorsement of David Koresh.


It’s really odd how people will so easily fixate on the bone the government consisting of maniacal, narcissistic, psychopathic, pathological liars will throw them; while totally ignoring that the pathological lying, evil, murderous people in and of the government are constantly and ceaselessly, lying and murdering.

There now carpet bombing and murdering people in Iran, just like they mass murdered people in Gaza, and they’re doing it to cover up and distract from the fact that our government consists of raping pedophiles. That is who we are governed by. … but David Koresh excuses it and makes any opposition invalid, of close.


I was reading your comment and thought you were a bit too extreme, but then I thought about it and was like "Hmmm. Yes. Sounds pretty accurate actually." So yes I agree.

I am completely against the US-Israeli war on Iran. That said, they are not carpet-bombing Iran. That is, they appear to be selecting individual targets rather than engaging in carpet bombing entire areas:

https://en.wikipedia.org/wiki/Carpet_bombing

The choice of targets is not legally legitimate (and the entire campaign is illegal AFAICT), and sometimes they used old/invalid intel, like what happened with that girls' school that's supposedly close to an IRGC base. Still, it is mostly individual buildings or installations rather than an attempt to flatten entire areas.


Not carpet bombing, yet. Israelis said the same at the start of the most recent Gaza war, which ended with large neighborhoods being destroyed.

They are using white phosphorus on populated areas in South Lebanon. That's as vile as one can get.

> I think he's trying to make a point about technology enhancing the capabilities of people who are in any conflict with conventionally powerful forces

Which is absurd, since all the technology he used was manufactured by the conventionally powerful forces and they can decide to not sell you their stuff.


The fact that Koresh and his group held off Federal officers who stormed their building with simple guns that anyone can buy, is likely the point.

Out of five and a half minutes of video, David Koresh appears for perhaps three seconds.

It does put a new twist on the recent controversy about 3d printers needing to be licensed, however.


soo... i have no kept up with what's gone on in russia/ukraine. Are those drone videos what i think they are – drones sneaking up on humans and, presumably, ceasing them of life?

edit: Ok, I googled the guy

  > I have read the works of authors such as Jean Baudrillard, Desmod Morris, 
  and Ted Kaczynski who believe that technology is harming us and the world.

  https://wiki.opensourceecology.org/wiki/User:Alisherkhojayev

Both Russia and Ukraine build millions of drones per year, most of them fpv drones that are basically remote controlled flying grenades. There's plenty of electronic warfare with radio jamming, so in some places they use drone mounted spools of fiber optic cable to control them. It's probably been the most impactful weapon type in the war for the past years.

Yes. Both sides are using explosive FPV drones, flown directly into soldiers (as well as other forms of drone warfare.)

thank you. that was unnerving to watch.

Who knew there were war bros.

We might need them. Would be better than my theory that this country will recover at some point after they destroy the EPA and reintroduce leaded gas because that's what made this country great which leads to a generation of kids who are willing to throw bricks at cops again.

[flagged]


It is exciting to know a secret no one else does. David vs Goliath stories have always been powerful. It is seductive to think you have outsmarted the rest of society.

Be careful who you let manipulate those emotions.


I am sorry to hear you suffer from mental deficiencies, but they are not secrets at all, you too can learn about the truth by following the link and informing ourself how the lying psychopaths in the government lied to you and made you the awful person that runs cover for evil like you are doing here.

You get that the post you're replying to is saying that the idea that you have knowledge that few others do is appealing and can lead to bad decision making, right?

Ascribing evil to someone who is trying to make a point in the gentlest and most respectful way possible makes you look like a crazy person, btw.


The white washing of Koresh is sickening to see. Similar to how some in the US idolize the traitor Colonel Robert E Lee.

If this was Usenet, your post would result in a “plonk” very likely.

Why did almost all Presidents up to and including Eisenhower praise Robert E Lee? Was Eisenhower a traitor also?


Try to pay attention please. Let’s try this; are you opposed to the government pumping 100 rounds into a person for some imagined “threat” they rationalize about after the fact? Koresh was not a great guy, kind of a piece of shit, just like the people the cops usually gun down, but that does not mean you need to take the low IQ government bait to excuse their lying and wanton murder and constant evil.

The engineering is genuinely impressive for $96, but naming the repo "MANPADS-System-Launcher-and-Rocket" on GitHub is going to attract exactly the kind of attention you don't want. ITAR implications aside, the interesting part is the mid-flight trajectory recalculation on a $5 sensor. That's the same basic problem military guidance systems solve with hardware that costs thousands.

The gap between consumer electronics and mil-spec capability keeps shrinking and this is a pretty stark demonstration of where that trend leads. A few years ago this would have required an IMU that cost more than this entire build. The democratization angle cuts both ways though - the same accessibility that makes this cool for hobbyists makes it genuinely concerning from a proliferation standpoint.


> The gap between consumer electronics and mil-spec capability keeps shrinking

My friend's brother works in munitions and had, in his spare time, designed and prototyped a missile that could be built for about 10k. He pretty much was ignored by the contractor he works for.

Shockingly, as of a couple weeks ago, they are all hot and bothered to talk.


I wonder what could have possibly sparked that... lol

Consumer GPS chips are specifically nerfed for using them in rockets; they give erroneous readings on purpose if altitude is above a certain height and/or if speeds exceed a certain speed. That’s likely why the mid-course correction software uses other methods.

It's not really terribly new actually, in the past, rapid advances in consumer technology have enabled other sort of weapon guidance systems. For instance, the development of extremely compact television cameras available to consumers directly lead to the development of the Walleye television bomb. It happened when one nerdy guy was fucking around with his new camera and realized that he could automatically track track features in an analogue television signal using some quite basic analogue electronics. Point the camera into the general direction of the target and you can then "lock on" to some target feature and based on contrast it could tell how that feature was moving around in the image.

He implemented a 1D tracker in his garage, took it to work and showed people. A few years later these bombs are taking out bridges and even sometimes hitting moving trucks.


Cheap sensors look impressive in demos but drift and calibration wreck repeatability unless you babysit launches so nobody in defense is sweating this yet.

For different definitions of cheap though.

While the pure gyro/accelerometer stuff does suffer from major problems the improvements in SLAM using just cameras in the last 15 years are insane.


But do they drift enough to hit girls schools?


Ask Claude

> This project manifesto declares a fundamental shift: advanced air-defense capabilities—once locked behind billion-dollar state arsenals and classified labs—are now within reach of determined individuals using consumer electronics, open-source software, and rapid prototyping.

I guess a lot of people will not be happy with this xD


> Description: Space echoes like an immense tomb, yet the stars still burn. Why does the sun take so long to die?

Translation: everyone should be able to shoot down an airliner, not just nations.

A certain kind of mind deals with stress by devising solutions, even if one cannot put them into action.

Seeing people in Israel, Iran, the general Middle East as well as the Ukraine live in fear of drone strikes might have incentivised this person to come up with a potential way to deal with these threats.

Cheap air defense would equilibrate drone warfare again:

Currently drones are much cheaper that the systems that take them down.


I would invert that statement.

The fact that home made drones can cause such havoc to even the best funded military is an equalizer when the military with all the power is actively trying to completely eliminate the otherside.

There are no home made devices a Gazan can build that can protect from a 2000lbs bomb.


MANPADS can be effective against large drones, but definitely not against the kind of FOV shit we see in Ukraine. They were originally designed to kill helicopters and low flying aircraft, and I'm guessing that's still his design intent.

>FOV

FPV.

But I really hate the whole weaponization of these FPV drones (as opposed to the bigger fixed wings ones), not just they ruined the fun hobby that a lot enjoy, but also increased the prices for the parts. Before 2022 whenever I talk about drones everyone is enthusiastic about them, what benefits they can bring like drone deliveries and all, after that, you get a hostile reaction or the government puttyou on some watchlist.


So this is basically a DIY mini rocket clearly advertised to be used in an asymetrical war. I do not expect this project to remain on github for long.

Fascinating, is miniaturisation and “democratisation” of offensive capabilities via 3d printing and consumer tech going to impact defensive capabilities as well?

Are we going to see foot troops carry one of these strapped to their backpacks and launched autonomously to counteract incoming drones?


As the YouTube comments say:

> This guy really wants that defense contract.


They may just give it to him to buy him. It’s the first stage of neutralizing the peasantry of rebellious thoughts against the aristocracy.

Given the navigation is done by the cameras (not GPS) you will also need to do some work with the second repository (by the same guy)-

https://github.com/novatic14/Distributed-Camera-Node-Trackin...


Many mention ITAR or some other issue, nothing about this project is even close to ITAR (as far I understand), connecting camera to rocket using it as guidance will get in trouble most likely, if not mistake only thing allowed is using camera to AIM at sun.

https://www.youtube.com/@LafayetteSystems is similar project, also by actual defense contractor, and less opensource.


MANPADS are certainly covered by ITAR. It could probably be effectively argued by his lawyers that what he has created isn't truly MANPADS but rather just an edgy toy that superficially resembles a weapon system but isn't actually capable of performing as one. Maybe that would work, but I think his chance of getting dragged into the legal system for this or for some chickenshit like weed possession are very high, particularly if the media at large picks up this story.

Straight up admitting that it's meant to implement MANPADS is certainly a choice, I hope the author doesn't get himself in hot water.. ITAR or something..

(Would be cool to see an ATGM variant too!)


This is obviously a missile, and I'm not well-versed in weapons tech, but won't this need a camera to actually track and take out a flying object? So far I just see gps and barometric sensing...

Also 3D printing and some electronics, ok fine, but where do you get the rocket propellant? That seems at least as critical as the software and sensing side of things...


Yeah, this current project uses external sensors (a camera array/grid) for guidance.

He's using potassium nitrate/sugar as his rocket fuel.


Watch the video. He makes his own propellant.

> rocket propellant

You can homemade it, kno3+sugar


God, I feel like I am going to be on a list after clicking that link.

The future is scary


What the “government” has in store for you is way scarier. You just doing know it any more than a cow on a pasture knows what a slaughter house is yet.

But in Canada we ...

Oh shit. You're right.


So basically a homing missile?

I’m waiting for the open source EW project that attacks the uplink. Now that would be a fun competition.

And then the rocket maker pivot back to control by wire, as in the drone sphere. DIY TOW when?


I hope the kid is aware that he better not commit anything even remotely like a crime, because they will try to stitch him up quick.

I watched a YouTube video the other day about how the usa tracks missle launches globally. I would assume they have to pass a minimum threshold of power/heat/energy to be detectable.

Let’s all pray this toy project, if readily upgradable, is also trackable and well … the way we keep law and order is by actual policing and prosecuting. So hopefully this doesn’t get out of hand.

Very impressive, but very troubling.


This thing doesn't do anything a launcher from the 70s couldn't do.

Global detection is for balistic missiles, not things launched by human portable devices


Isn't it obvious that, if one person can do it, many more can do it as well, and probably have? It's not like they'll put it on GitHub.

Sounds a lot more like a missile than a rocket.

The HN headline is very euphemistic, but his own published materials aren't. He's openly saying it's a missile.

Kid knows how to advertise

Yes to three-letter agencies.

Glad he’s in the US, I remember reading in Canada few months ago students got criminally charged for building and testing an anti-drone system.

John Connor.

Be very careful. Google and GitHub will turn you over without hesitation, and everyone who downloads this will probably be vanned.

Remember kids, the warrantless search is only illegal if they don’t find a surface to air missile. Anything can be made retroactively legal if they find something like this.


Insanity. Airbus fighter jets, open-source rockets on github...

Can't wait for the open source fighter jet.

Clawjet, secured with sandboxing, bring your own SKILLs.

Just a few days ago, we got a legitimate from scratch open source design for a phased array radar [1].

[1] https://hackaday.com/2026/03/12/open-source-radar-has-up-to-...


that's lit

Airbus has been in the defense industry for a long time.

And the deadliest weapons in war today are repurposed toys.


So you are going to see the following cope

Coper: But it's sensors are so low end it will never be reliable enough. Response: We can use AI to make up for low quality sensors, we can add a camera if we want it to be as reliable as self driving cars for a small amount of money Coper: AI what a joke that doesn't work Response: It's live in production Coper: But you can't fit a big enough payload Response: Lets see




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