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Old October 3rd, 2012, 12:21 AM   #1 (permalink)
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In of all places--an Architecture or Interior Design Magazine--I found a little blurb and picture with the tag line: "the dark side of printing" that briefly explained how a clever maker used his 3D solid printer to make parts for (I think) an AR-15 to convert his weapon to full auto.

I am not sure what he did exactly, but I wonder if this is something we should worry about, given the great materials we have available along with better 3D Solid Printers.

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Old October 3rd, 2012, 12:51 AM   #2 (permalink)
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I have heard of also but do not really understand.

Anyone who knows more, I would like to hear.
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Old October 3rd, 2012, 06:53 AM   #3 (permalink)
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Seeing as these printers use a fairly weak plastic, and a semi-auto assault rifle is plenty dangerous as-is, I don't see any cause for concern. The plastic parts wouldn't last for more than a couple of cycles (shots), and might break while loading the weapon, so the only good they'd be is as forms to make metal castings that would need finishing and fitting to ensure that they work properly.

In other words, a skilled gunsmith would be needed to make a scheme like this work. Most skilled gunsmiths could figure out how to make their own full-auto conversions if they wanted to. So it's all on the willingness of the gunsmith to break the law. That means that the increase in risk would be about zero.

In addition, many civilian versions of military weapons (the Uzi comes to mind) that are sold in the US are made with a different operating system that makes it even harder to convert them to full auto operation. Often an open bolt operating system is used for selective fire or full auto use. Some manufacturers have made closed bolt variants that will not accept the standard full auto components.

Although full auto has a dramatic effect, it's not necessarily a more dangerous weapon. Most full auto submachineguns and assault rifles will go through a magazine in a second or two, causing the need for constant reloading. Full auto mode makes it impossible to maintain aim, so few shots hit their mark. I'd be a lot more afraid of a skilled marksman with a bolt action rifle than I would be of an idiot with a full auto rifle that he can't control.
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Old October 3rd, 2012, 07:09 AM   #4 (permalink)
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Since it's not hard to get the parts needed anyway to convert those type of guns to fully automatic, it's really a moot concern. And since kids are running into school shooting up the place, a skilled gunsmith is also not necessary to do it.
As for accuracy, when you're shooting into a crowd of people, pin point precision is also not an issue. And let's be real about it; that's the reason one has nowadays to convert guns to fully automatic, unless they're going after Bugs Bunny. That's one slippery "wabbit".
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Old October 3rd, 2012, 07:09 PM   #5 (permalink)
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Originally Posted by SIII groupie View Post
I have heard of also but do not really understand.

Anyone who knows more, I would like to hear.
Here is a little more information:

3D Printer Helps Make Working Gun | 3D printing technologies | TechNewsDaily.com

Not sure if this is good or bad. I remember having to make difficult parts with photo-chemical milling, chemical masking and large negatives. How the times have changed.
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Old October 3rd, 2012, 07:14 PM   #6 (permalink)
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Seeing as these printers use a fairly weak plastic, and a semi-auto assault rifle is plenty dangerous as-is, I don't see any cause for concern. The plastic parts wouldn't last for more than a couple of cycles (shots), and might break while loading the weapon, so the only good they'd be is as forms to make metal castings that would need finishing and fitting to ensure that they work properly.

In other words, a skilled gunsmith would be needed to make a scheme like this work.
I think I will disagree for the time being. Admittedly, I should not disagree because I am not an expert in this area.

We have water-jet cutters, laser cutters and 3D printers. As the tools develop, demands for better materials will likely bring all sorts of stuff to the workshop.

I can see extremely strong materials coming to a printer near you because the machine costs are cheap and I can see people wanting to forgot milling to take advantage of something any idiot can use.

Perhaps that is a big part of the problem
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Old October 3rd, 2012, 07:24 PM   #7 (permalink)
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This is a moot point since you can already get the parts black market to do a full auto conversion for a lot cheaper than the investment to make the parts with a 3D printer.

Unless someone was wanting to mass produce and distribute these parts it would make absolutely no sense to do this and as Speed Daemon stated, the parts would not be strong enough to hold up to the weapon cycling from any printer the average person could afford.

Sure, if you want to spend hundreds of thousands on a laser plotting printer with composite plastics it might work, but the even remotely affordable units would not hold up. "Cheap" machines are still thousands to tens of thousands of dollars.
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Old October 3rd, 2012, 07:55 PM   #8 (permalink)
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This is a moot point since you can already get the parts black market to do a full auto conversion for a lot cheaper than the investment to make the parts with a 3D printer.

Unless someone was wanting to mass produce and distribute these parts it would make absolutely no sense to do this and as Speed Daemon stated, the parts would not be strong enough to hold up to the weapon cycling from any printer the average person could afford.

Sure, if you want to spend hundreds of thousands on a laser plotting printer with composite plastics it might work, but the even remotely affordable units would not hold up. "Cheap" machines are still thousands to tens of thousands of dollars.

Perhaps today, but unless you live in a cave, you might have noticed that tech improves, evolves and becomes cheaper and better in short order. No reason to say a desktop "gun factory" could not become available with far stronger materials becoming available.

I can see the need for a DT 3D printer for making strong parts. And where there is a market, there is a product to fill the needs.

I'll say making a working gun that lasts is just a matter of time. I do know a little about laser cutters and ten years ago, they were costly. Now they are a thousand dollar investment for the do it yourself person.

We already have diodes you can use to make cutting laser pointers and that was not possible twenty years ago.
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Old October 3rd, 2012, 08:00 PM   #9 (permalink)
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*downloading the schematics to an Dillion mini gun*
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Old October 3rd, 2012, 08:16 PM   #10 (permalink)
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*downloading the schematics to an Dillion mini gun*
That's would be a simple x-ray of my mother-in-law's mouth. That thing can lay waste.
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Old October 3rd, 2012, 08:40 PM   #11 (permalink)
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Nanolithography is on the rise because the item can be produced with no waste. That is the single most important point of this tech. No waste.

Manipulation on a molecular level IS the future. Believe it or not, nanotech will be the next great explosion in human technology and evolution. It can also weild the horrors only dreams touch. It's both exciting and scary what will be possible.

3d Printing is just a scratch on the surface, the beginning.
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Old October 3rd, 2012, 10:03 PM   #12 (permalink)
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I am prior ARMY that used the M16 extensively. The bottom receiver of my AR15 would have to be partially re-milled to accept parts for full auto. To my knowledge other lower receivers are similar.


End result is it is not as easy as dropping new parts in.



Also as previously mentioned the new parts need to be extremely durable otherwise they might fail on even the first shot.
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Old October 4th, 2012, 12:41 AM   #13 (permalink)
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Anything is possible, when you're a machinist. Tooling, mechanical aptitude and a garage type mill or lathe (With creative clamping abilities) can get any job done.

Any experienced machinist can produce your components. Unless you your self have the experience and mechanical aptitude, you can create what ever you wish.
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Old October 4th, 2012, 12:45 AM   #14 (permalink)
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Anything is possible, when you're a machinist. Tooling, mechanical altitude and a garage type mill or lathe (With creative clamping abilities) can get any job done.
I understand that, but those are skills most hobbyists will never develop. With a 3D printer, not much brain power is required. Yes, there is a learning curve, but it is not as steep as learning to use a mill, lathe and the like.
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Old October 4th, 2012, 12:46 AM   #15 (permalink)
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Nanolithography is on the rise because the item can be produced with no waste. That is the single most important point of this tech. No waste.

Manipulation on a molecular level IS the future. Believe it or not, nanotech will be the next great explosion in human technology and evolution. It can also weild the horrors only dreams touch. It's both exciting and scary what will be possible.

3d Printing is just a scratch on the surface, the beginning.
I agree. No telling what the future holds.
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Old October 4th, 2012, 01:04 AM   #16 (permalink)
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I understand that, but those are skills most hobbyists will never develop. With a 3D printer, not much brain power is required. Yes, there is a learning curve, but it is not as steep as learning to use a mill, lathe and the like.
Take it this way, I built an automatic transmission on my first try. If one is so inclined, those skills are easily aquired. Tenacity is king my friend, especially in the right mind (Hands).
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Old October 4th, 2012, 01:09 AM   #17 (permalink)
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Originally Posted by Granite1 View Post
Nanolithography is on the rise because the item can be produced with no waste. That is the single most important point of this tech. No waste.

Manipulation on a molecular level IS the future. Believe it or not, nanotech will be the next great explosion in human technology and evolution. It can also weild the horrors only dreams touch. It's both exciting and scary what will be possible.

3d Printing is just a scratch on the surface, the beginning.
Exactly why man needs to vanish from nature.

Man keeps f*cking with sh*t he knows little to nothing about!

God! I hope you exist! lol Get your tail down here and end this nightmare! lol

I truly mean that...
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Old October 4th, 2012, 03:56 PM   #18 (permalink)
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Exactly why man needs to vanish from nature.

Man keeps f*cking with sh*t he knows little to nothing about!

God! I hope you exist! lol Get your tail down here and end this nightmare! lol

I truly mean that...
We are very smart and our build quality is high. Our design lets us do many things. We were given intelligence so if mother nature has a problem, tell her to chill because she gave us the tools and brains to FU the world.

And certainly, we are not all that bad. We do not have the power to destroy the planet. The planet will be here after we are gone. We do not need to vanish from nature. If you are all that concerned, you can end it all.

As for God, he gave us the smarts to do many things. If he exists, he will decide when to stop it. Until then, remember that he has a plan and only he knows when enough is enough.
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Old October 4th, 2012, 04:03 PM   #19 (permalink)
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Take it this way, I built an automatic transmission on my first try. If one is so inclined, those skills are easily aquired. Tenacity is king my friend, especially in the right mind (Hands).
And I built a Heathkit color TV when I was a wee lad and I learned to repair Marchant mechanical calculators early on as well. Some people can do things and others are hopelessly lost.

I could probably build a working gun old school. But if there was a desktop manufacturing solution, I know I could do it.

I do not think we will see lots of guns being made any time soon.

I was told that a group wanted to make plans available for some kind of gun and the DT 3D printer manufacturers (apparently) decided not to sell this group a printer because (apparently) they feared what could happen. and if they will not sell you the printer, obviously, they think there is a possibility the printer/tech will be abused.

Anyone know the back story or if it is true or not true?
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Old October 4th, 2012, 06:54 PM   #20 (permalink)
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It can't form complex machines. Guns and explosives have chemicals, moving parts. It doesn't work that way. But it can form solid metal shapes.

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Old October 4th, 2012, 08:59 PM   #21 (permalink)
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And I built a Heathkit color TV when I was a wee lad and I learned to repair Marchant mechanical calculators early on as well. Some people can do things and others are hopelessly lost.

I could probably build a working gun old school. But if there was a desktop manufacturing solution, I know I could do it.

I do not think we will see lots of guns being made any time soon.

I was told that a group wanted to make plans available for some kind of gun and the DT 3D printer manufacturers (apparently) decided not to sell this group a printer because (apparently) they feared what could happen. and if they will not sell you the printer, obviously, they think there is a possibility the printer/tech will be abused.

Anyone know the back story or if it is true or not true?

I seriously question the validity of these stories. I read the various reports, all of which state the company seized the printer because they felt what he was doing was illegal. None of them gives details as to how this seizure happened which I find strange since if you own a piece of equipment the manufacturer can't come and seize it at will for any reason. If it was a lease with no option to own maybe, but that is dubious as well otherwise car companies could repossess your leased car because they don't like the way you drive.

The other problem with this is it claims to be a "fully printable" gun. There are no plastics out there that can be run through a printer that will hold up to the chamber pressure or heat generated firing a round. There are some carbon-kevlar composites that might but they would not be printable.

I am going to chalk this up to internet sensationalism.
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Old October 4th, 2012, 09:23 PM   #22 (permalink)
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I seriously question the validity of these stories. I read the various reports, all of which state the company seized the printer because they felt what he was doing was illegal. None of them gives details as to how this seizure happened which I find strange since if you own a piece of equipment the manufacturer can't come and seize it at will for any reason. If it was a lease with no option to own maybe, but that is dubious as well otherwise car companies could repossess your leased car because they don't like the way you drive.

The other problem with this is it claims to be a "fully printable" gun. There are no plastics out there that can be run through a printer that will hold up to the chamber pressure or heat generated firing a round. There are some carbon-kevlar composites that might but they would not be printable.

I am going to chalk this up to internet sensationalism.
Naw . . . everything on the net is real. Someone at the Internet company confirms every story. Did you not understand that?

Seriously, it is a hard call. I do know there are certain things the guberment can confiscate if they are being used illegally. Not sure how a 3D printer fits in.

Not sure a company can just take something back. I am sure in some situations, they might be able to but then the suits arrive and who knows how a judge or jury will react. I think as soon as a jury is told that a weapon can be created from a desktop printer, you are screwed.

I also think one person's success in making a few parts to convert a gun ends up being a whopper of a story, where well stocked printed armory is just a matter of time.

But i also think being able to create useful products like vintage motorcycle trim parts would be cool.

Lots of far worse things to worry about I should think.

As for materials and their strength and ability to handle pressure, there are many such material out there. And if ultra-strong materials are demanded by the growing 3D printer users base, they will most certainly arrive.

They are creating new chemical compounds with a 3D printer for example. Automated (I do not know how automated this process is) custom compounding can lead to some issues for society.

I am not saying the sky is about to fall, but the rapid deployment of some pretty amazing technology is happening at a rapid pace. I think we have the equipment now all we need are the materials and they will arrive.

At Palm, we made case parts with a device like a 3D printer. Twin laser beams scanned a vat of polymers and where the laser beams crossed, the different frequency of the combined light hardened the plastic. We created all kinds of shapes including round areas that looked like tubes.

So barrels could be easily fashioned.
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Old October 4th, 2012, 09:35 PM   #23 (permalink)
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Naw . . . everything on the net is real. Someone at the Internet company confirms every story. Did you not understand that?

Seriously, it is a hard call. I do know there are certain things the guberment can confiscate if they are being used illegally. Not sure how a 3D printer fits in.

Not sure a company can just take something back. I am sure in some situations, they might be able to but then the suits arrive and who knows how a judge or jury will react. I think as soon as a jury is told that a weapon can be created from a desktop printer, you are screwed.

I also think one person's success in making a few parts to convert a gun ends up being a whopper of a story, where well stocked printed armory is just a matter of time.

But i also think being able to create useful products like vintage motorcycle trim parts would be cool.

Lots of far worse things to worry about I should think.

As for materials and their strength and ability to handle pressure, there are many such material out there. And if ultra-strong materials are demanded by the growing 3D printer users base, they will most certainly arrive.

They are creating new chemical compounds with a 3D printer for example. Automated (I do not know how automated this process is) custom compounding can lead to some issues for society.

I am not saying the sky is about to fall, but the rapid deployment of some pretty amazing technology is happening at a rapid pace. I think we have the equipment now all we need are the materials and they will arrive.

At Palm, we made case parts with a device like a 3D printer. Twin laser beams scanned a vat of polymers and where the laser beams crossed, the different frequency of the combined light hardened the plastic. We created all kinds of shapes including round areas that looked like tubes.

So barrels could be easily fashioned.
Well of course it is real, after all Al Gore invented it!

I think we are a long way off from fully printable guns, but some components are a reality now such as AR15 lowers, stock & grips and possibly some less wear heavy hard parts.

The laser unit you are talking about is what I referred to earlier as a laser plotting printer, really cool stuff! They are used to make replacement bones like partial skull plates and mandibles. The affordable printers work by melting plastics and spraying them like an inkjet printer, which is why they could not currently hold up to the heat of repetitive shots. You might make a one or two shot "last ditch" pistol but any more than that and the barrel would degrade to quickly. I could see a single use "assassination pistol", close range, then pitch it in a fire to melt it.
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Old October 4th, 2012, 09:53 PM   #24 (permalink)
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Well of course it is real, after all Al Gore invented it!

I think we are a long way off from fully printable guns, but some components are a reality now such as AR15 lowers, stock & grips and possibly some less wear heavy hard parts.

The laser unit you are talking about is what I referred to earlier as a laser plotting printer, really cool stuff! They are used to make replacement bones like partial skull plates and mandibles. The affordable printers work by melting plastics and spraying them like an inkjet printer, which is why they could not currently hold up to the heat of repetitive shots. You might make a one or two shot "last ditch" pistol but any more than that and the barrel would degrade to quickly. I could see a single use "assassination pistol", close range, then pitch it in a fire to melt it.
Or drop it in water to dissolve it. Seems far fetched. That a strong plastic would "melt" in water might seem to most people to be not possible. But I am not surprised at some of what is down the road.

I absolutely expect we will one day be able to create machines--3D printers as an example--capable of creating other machines. I am not talking about self-replicating in the science fiction fantasy world vein, but machines that are simple and capable of creating more complex machines.

We see this already with RepRap.

If a polymer could be developed (when a polymer IS developed, rather) that can be made tough with adjuncts or softer (think shoes and "rubber" soles) with additives, I can see a point where we simply make what we want. We are already there in some respects.

Plastics are the way to go because the technology is advancing and it will be possible to create ultra-strong materials down the road. They can start soft and become hard with chemical vapour treatment, soaking the parts in chemicals, even light can harden some materials.

For that matter, simply use ceramic materials that can be fired in your oven. Then you have materials stronger than the best metals used to make guns. All you need is a way to create a one time use machine gun and we have a problem.

Our great grand children will live in an amazing world. Unfortunately (?) they will wonder what the next 50 years holds for them, just like we wonder about the future now.
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Old October 4th, 2012, 10:17 PM   #25 (permalink)
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Originally Posted by Bob Maxey View Post
The article is not plausible.

First of all, an AR-15 is a long gun, not a pistol. Second, the .223 ammunition that it takes is nothing like a .22 rimfire cartridge. It just falls apart as a story.
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Old October 4th, 2012, 10:21 PM   #26 (permalink)
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Originally Posted by Bob Maxey View Post
I think I will disagree for the time being. Admittedly, I should not disagree because I am not an expert in this area.

We have water-jet cutters, laser cutters and 3D printers. As the tools develop, demands for better materials will likely bring all sorts of stuff to the workshop.

I can see extremely strong materials coming to a printer near you because the machine costs are cheap and I can see people wanting to forgot milling to take advantage of something any idiot can use.

Perhaps that is a big part of the problem
I agree. The big part of the problem is that the equipment that could do what is claimed exists only in people's imaginations.
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Old October 4th, 2012, 10:25 PM   #27 (permalink)
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At Palm, we made case parts with a device like a 3D printer. Twin laser beams scanned a vat of polymers and where the laser beams crossed, the different frequency of the combined light hardened the plastic. We created all kinds of shapes including round areas that looked like tubes.

So barrels could be easily fashioned.
Do you really understand the pressures needed for a decent barrel? The idea behind firearms is the gunpowder burns/explodes and gasses expand. Expanding gasses have only one way to exit and push the bullet forward.

I do not know of any plastic on earth that could handle the pressures needed for a decent caliber/round. Even a .22SR (which has no power at all, barely more than a BB) would cause 99% of plastics to explode/melt on the spot. I seriously doubt that a 3D printer plastic is among the top 100 percentile in plastic strength technology (I could be wrong). If you made a .22SR barrel a foot thick in diameter, maybe, but it would be unusable (and still warp/melt).


If you used a .22SR on a squirrel he would look at you and say 'Hey, knock it off.'


Understand that a twisted/bent/melted barrel is a death trap to the shooter.


There are reasons why barrels are ALWAYS made from hardened steel. NO firearm sold has a plastic barrel.
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Old October 4th, 2012, 10:33 PM   #28 (permalink)
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It can't form complex machines. Guns and explosives have chemicals, moving parts. It doesn't work that way. But it can form solid metal shapes.
One of the many errors of omission is the inability to perform alchemy to make ammunition and parts that can withstand very high pressures.

When you consider that enterprising criminals have made crude firearms out of household items, the printer idea looks absurd. Like printing a 747 to save the price of a plane ticket.
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Old October 5th, 2012, 12:03 AM   #29 (permalink)
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These printers are already pretty cheap, and will only get cheaper and better.

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Old October 5th, 2012, 01:25 AM   #30 (permalink)
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Originally Posted by kevincott View Post
Do you really understand the pressures needed for a decent barrel? The idea behind firearms is the gunpowder burns/explodes and gasses expand. Expanding gasses have only one way to exit and push the bullet forward.

I do not know of any plastic on earth that could handle the pressures needed for a decent caliber/round. Even a .22SR (which has no power at all, barely more than a BB) would cause 99% of plastics to explode/melt on the spot. I seriously doubt that a 3D printer plastic is among the top 100 percentile in plastic strength technology (I could be wrong). If you made a .22SR barrel a foot thick in diameter, maybe, but it would be unusable (and still warp/melt).

If you used a .22SR on a squirrel he would look at you and say 'Hey, knock it off.' Understand that a twisted/bent/melted barrel is a death trap to the shooter.

There are reasons why barrels are ALWAYS made from hardened steel. NO firearm sold has a plastic barrel.
I do understand the pressures required. I do know the plastics used by hobbyists that made objects with a 3D printer are not suitable for making guns and you do not need to explain the dangers of a melted barrel. I get it.

But we are talking about new technology and market demands and an increasing user base. Be it a 3D printer or laser cutter or even a computerized engraver that can be used to make small parts, the prices are dropping and the DIY crowd are developing tools that bring difficult manufacturing to the masses.

We have the equipment and it is getting less costly. Now, all that is left are the materials which a growing market will provide. There will be demands for materials that can easily withstand the pressures created when a gun discharges.

Your believing that it is impractical or impossible or assuming that I do not get it is as silly as not understanding that there are many materials out there and new ones on the way. Today, yes, the materials might be elusive, but you do not know. Vast amounts of materials are out there in the market. Next year, who knows what will happen.

Somewhere along the line, a system will arrive that lets you make parts like barrels from plastics or similar materials that WILL stand up to the pressure required.

As far as pressure is concerned, forget plastics and use ceramics. I can see a material aimed at hobbyists that is shipped soft. After machining with one of the desktop manufacturing stations, it is baked. Then you have a material that could handle the pressures that occur in something like a .50 caliber.

Or forget ceramics and revisit the plastic engines made in 1980 or so for professional racing motorsports. That specific developer is partnering with Huntsman Chemical to bring a plastic engine to market.

Just a matter of time.
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Old October 5th, 2012, 01:36 AM   #31 (permalink)
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One of the many errors of omission is the inability to perform alchemy to make ammunition and parts that can withstand very high pressures.

When you consider that enterprising criminals have made crude firearms out of household items, the printer idea looks absurd. Like printing a 747 to save the price of a plane ticket.
The ammo is not an issue. Why do you say it is impossible to make a plastic gun because there is no way to make the ammo? Are you kidding me?

And one can make ammo . . . it is called reloading. Cases are a bit more involved, I will grant you that.

It would be like saying you cannot build a plane because there is no way to crack your own oil. I know a man that has built several planes and he has yet to drill his own oil.

Materials will arrive that will likely handle the pressures in a typical gun. This is just a simple fact. I know a bit about plastics and this is something manufacturers are working on. There is a huge demand for high strength polymers and that is why they will arrive.

And when you consider how easy it is for criminals to make crude guns, it is true, but they did not have access to tools that make making a gun easier with every passing day. Zip guns are easy to make, after all.
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Old October 5th, 2012, 06:06 AM   #32 (permalink)
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Originally Posted by Speed Daemon View Post
One of the many errors of omission is the inability to perform alchemy to make ammunition and parts that can withstand very high pressures.

When you consider that enterprising criminals have made crude firearms out of household items, the printer idea looks absurd. Like printing a 747 to save the price of a plane ticket.
lol i was quoting Terminator 2
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Old October 5th, 2012, 07:33 AM   #33 (permalink)
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lol i was quoting Terminator 2
No matter what the source, it's a good point.

This topic is best summed up as much ado about nothing. It reminds me of the "electricity over IP" gag RFC.
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Old October 5th, 2012, 07:46 AM   #34 (permalink)
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The October issue of Wired Magazine has a cover story about the 3D printer I linked to above. I can't find it online, but its a long, interesting article if anyone is interested in tracking it down.
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Old October 5th, 2012, 06:30 PM   #35 (permalink)
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All you need is a way to create a one time use machine gun and we have a problem
Boy how's that for an oxymoron!
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Old October 6th, 2012, 12:13 AM   #36 (permalink)
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You would need a lathe and a milling machine...and someone with the proper skills. I would imagine that a full auto AK-47 would be quite a bit easier to manufacture than an AR-15. The AK was designed so that you could make it without an sophisticated/expensive manufacturing process (stamped metal and all). Which explains why it is a piece of junk.

I briefly tried full auto once (on a AR-15) and was somewhat disappointed. My impression is that it would be useful only for two things a)shooting at a crowd b)putting enough lead in the air to force someone to either take a random hit or get behind cover. If you want to actually hit the target consistently and reliably, put it on semi-auto. Full auto is overrated.
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Old October 6th, 2012, 04:49 AM   #37 (permalink)
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You would need a lathe and a milling machine...and someone with the proper skills. I would imagine that a full auto AK-47 would be quite a bit easier to manufacture than an AR-15. The AK was designed so that you could make it without an sophisticated/expensive manufacturing process (stamped metal and all). Which explains why it is a piece of junk.

I briefly tried full auto once (on a AR-15) and was somewhat disappointed. My impression is that it would be useful only for two things a)shooting at a crowd b)putting enough lead in the air to force someone to either take a random hit or get behind cover. If you want to actually hit the target consistently and reliably, put it on semi-auto. Full auto is overrated.
Full auto on an M16 is somewhat worthless, which is why 3-round burst came along. M16 auto is meant to hit-the-deck and not much more and the 5.56 NATO can't pentetrate.

True machine gunners have a asst-gunner that carries a spare barrel to compensate for the heat issue. M60s (7.62x51) were pretty beast but heavy, when I was active duty they were switching to SAWs (.223). Not sure how the SAWs' penetration fared.
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Old October 6th, 2012, 12:14 PM   #38 (permalink)
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Boy how's that for an oxymoron!

How so? I create a machine gun that can withstand fifty rounds and then it is tossed and I make another one. You know, use it once and that's that?
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Old October 6th, 2012, 12:24 PM   #39 (permalink)
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One does not think one time use (read single shot) and machine gun.
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Old October 6th, 2012, 12:39 PM   #40 (permalink)
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One does not think one time use (read single shot) and machine gun.
I do know that a machine gun fires multiple bullets.

Aren't you glad I did not say single shot one time use semi-automatic sub machine gun?
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Old October 6th, 2012, 02:26 PM   #41 (permalink)
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Personally I would rather print something far more usable...like money!
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Old October 6th, 2012, 07:35 PM   #42 (permalink)
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Personally I would rather print something far more usable...like money!
I agree, there are better things to print. Not money perhaps, but some nice Pony Express covers or a nice set of Zeppelin issues would be nice.

Actually, some rare known forgeries. There are a few known forgeries notable for the forger who created them.

So how many years in prison can I expect for forging forgeries? I mean, I am not forging legitimate issues, just forgeries. Would the courts and jury go crazy?
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