alleycat

Tech hobbyist makes shoulder-mounted guided missile prototype with $96 in parts and a 3D printer — DIY MANPADS includes Wi-Fi guidance, ballistics calculations, optional camera for tracking

https://feddit.org/post/27278920

Tech hobbyist makes shoulder-mounted guided missile prototype with $96 in parts and a 3D printer — DIY MANPADS includes Wi-Fi guidance, ballistics calculations, optional camera for tracking - feddit.org

>Despite the tech-cool factor of the project, Tom’s Hardware does not condone making your own weapons system at home.

Mar 18 at 2:11pmWeb
Show threadeinkornMar 18
Cue politicians calling to ban 3D printers in 3 … 2 …1 …
Show threadSaveTheTuaHawkMar 18
Sure, ban hardware stores after that.
Show threadTootSweetMar 18
Stop. Giving. Them. Ideas.
Show threadGreyEyedGhostMar 18
Reminds me of a time when I went to a maker space open house, and they were showing all kinds of cool stuff, including fairly advanced 3D printers for time. They mentioned there was programming to halt prints of things like gun parts, so it would be very hard to make guns using them. I commented, “Besides, you can make better ones in the metal shop in the other room.” He replied, “Yeah! <brief pause> No!”
Show threadDoubleDongleMar 19
Four Winds Shotgun is a good thing to know about. I don’t think you even need a machine shop.
Show threadGreyEyedGhostMar 19
Is that the sliding pipe gun? I think all you need is materials, a hack saw, and a drill. But with a machine shop, the materials list is just steel and some springs, and you can have a gun as good as any we had prior to the last century.
Show threadBluewingMar 19

Even rifling can be cut with nothing more than a hardened piece of tool steel, a green sapling and a bit of time and patience to make what’s called ‘Scratch rifling’. Even a wooden rifling machine isn’t hard to make if you want to boost production a bit.

And yes, the metal working shop I own is perfectly capable of making every piece of any firearm you might want. I have even made a black powder 2" Coehorn mortar to launch baby food jars filled with concrete 100s of yards. I know guys who have made full sized and functioning Gatling guns down to the horse-drawn trail it was mounted to. An expensive and time-consuming endeavor.

But it makes the general populace feel good and gives politicians more power.

Show threadSaveTheTuaHawkMar 19
People have been making versions of zip guns forever.
Show threadTruscapeMar 18
Philip A. Luty smiles
Show threadNuXCOM_90PercentMar 19

While I am fully opposed to a 3d printer ban (and abhor the efforts of Bambu et al to sneak that in), it is very important to understand why that is not a fair comparison and, if anything, sets a threshold that can be used to argue FOR a ban.

I’ve ranted in detail before so I’ll do the short version this time:

You are not going to make a barrel or springs yourself. And the good news is that you don’t need to. None of that is a controlled/registered part (for the vast majority of guns) and you can literally buy those at a walmart equivalent. And there at least used to be pre-packaged bundles available online for your ghost gun needs.

So that mostly leaves the receiver and fire control unit. I will bet you money that giving a rando off the street 24 hours to figure out how to go to the local communal machine shop and make even a frigging sten and they will fail miserably. Whereas there are videos (fuck vice for how they abused their workers but old-vice has a really good video where they literally made the gun Luigi allegedly used) of people going from 0 to glock in 12 hours of print time and 4-5 hours of filing.

And that is the big difference. How much that matters when you are considering a country where you can buy the same gear that Tier 1 Special Forces use to abduct (admittedly really shitty) world leaders for under a thousand bucks is a HUGE question. But from the “ghost gun” perspective? There is VERY much a big difference between having a CNC and machining a receiver+FCU versus doing the same with an Ender 3.

Show threadSaveTheTuaHawkMar 19
Why don’t they make firing chambers and barrels out of plastic? Are gun makers stupid?
Show threadNuXCOM_90PercentMar 19

There actually are some really cool proof of concepts where people have 100% 3d printed a gun. And “potato cannons” are generally a PVC firing chamber and barrel.

For legal purposes: Preface everything after this with a dozen "allegedly"s. A couple years back I went to a really cool event where people had built machine guns out of wood and plastic (FDM). None had any issue with doing well over 100 rounds each. That said, anyone with half a brain cell was literally hiding in a bunker nearby out of terror when the firing was going on. But… yeah.

Like anything, it is about pressure, strength, and geometry. And, as The Troubles in Ireland can attest… you don’t need THAT much skill to make something that will fire… once. Which is why there are so many shed machine guns and rifles with split barrels and completely exploded receivers in The Royal Armouries.

Show threadFatherPeanutMar 18
Washington state already started making moves against it, as an attempt to prevent 3D printed firearm components. Specifically, it requires 3D printers sold within the state to have firmware-based scanning to cancel prints it suspects are used for firearms.
Show threadPennomiMar 18
Good fucking luck. That’s completely impossible
Show threadFatherPeanutMar 18

One passed, the other has yet to be presented. These legislators have no clue how they’d even do it, but circumventing the scan is also made illegal.

So yeah, flashing Open-Source firmware is something they dont like either, but fingers crossed they just choose to not allocate resources to enforcement. Wouldn’t be surprised if this 3D printed missile mentioned in the article above comes up ad a taking point during the legislative hearings.

Show threadNasanMar 18
Sounds like something that wouldn’t be worth going out of the way to enforce. But rather used to tack on extra charges when someone commits another crime where the extra level of investigation would uncover the flashed firmware. Not that it would do much to deter or prevent what they’re afraid of from happening.
Show threadPennomiMar 18

Doesn’t matter if it’s passed or not. It’s not possible to implement, and therefore completely unenforceable. Legislation cannot change the fundamental limits of software.

This is either a blanket ban on all 3D printers, or none of them.

Show threadTelexMar 19
Or a way to arbitrarily charge anyone or to add to anyone’s charges in case they own something that fits the bill.
Show threadCIA_chatbotMar 18
I’m imagining a bunch of first amendment challenges to these laws
Show threadMacMar 18
In this shithole? Good luck. They do whatever they want regardless of whatever rights you think you have.
Show threadCIA_chatbotMar 19
Yea that’s true
Show threadNutinButNetMar 18
California is joining in too with AB-2047 and New York has AB-2228 requiring a criminal background check for buying a 3D printer.
Show threaddaanniiMar 19
Already trying to
Show threadNuXCOM_90PercentMar 18

Ignoring the legal repercussions of this:

Most of this makes sense. Stingers go back to the late 70s (?) and most of what we see used in Ukraine is closer to a decade old than not (and based on even older tech). Tech advances and what used to be hard becomes cheap.

That said? I would be very curious how this handles inclement weather. Wind and rain are a mofo and that (among other reasons) is why model rockets and the like are only ever really flown on beautiful clear days. And I don’t know enough about how the communication with javelin et als work these days but wifi seems REAL questionable.

Still. This is a really cool project and really speaks to the changing nature of warfare. And, once again, highlights the real reason so much money has gone into FDM processes.

Show threadprenatal_confusionMar 18

GitHub gives 404. Only the tracking nodes is available.

I wanted to see if they actually made something.

Show threadDionysusMar 18

github.com/…/MANPADS-System-Launcher-and-Rocket

That link on the video is bad. Just look at his profile.

GitHub - novatic14/MANPADS-System-Launcher-and-Rocket

Contribute to novatic14/MANPADS-System-Launcher-and-Rocket development by creating an account on GitHub.

GitHub
Show threadprenatal_confusionMar 19
Thanks!
Show thread🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 Mar 18
He built this in a cave, using scraps? 😯
Show threaddaanniiMar 19

Honestly I figured an open container of gasoline and a Roman candle could do the job but requires placing the gasoline can.

Gasoline is an explosive.

Many people don’t really know this. They think it’s like alcohol or lighter fluid.

It is not.

Show threadprenatal_confusionMar 19

How does it perform? Besides propelling itself forward? Is there constant thrust maintained with that SRB and is the nozzle holding up? For the fins have any control authority, can it correct course reliably?

It is really cool, but there are a lot of things that need to be either shown or need to be developed further.

Show threadNoFun4YouMar 19
Lol time for a massive several week investigation if it were my town