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    <title><![CDATA[Discussion on Wiki Weapon project: Make a 3-D printed gun at home ]]></title>
    <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615]]></link>
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    <lastBuildDate>2013-05-19T14:45:19-07:00</lastBuildDate>
             

    <item>
        <title><![CDATA[now a paper one!]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-93682]]></link>
        <description><![CDATA[check out this link...http://blog.makezine.com/2012/11/05/working-paper-m1911-45-pistol/?utm_source=Contextly&amp;utm_medium=RelatedLinks&amp;utm_campaign=Previous someone made a 'working' 1911 replica out of paper. just don't try to use a real bullet in it.Let's ban paper and glue! ]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-93682]]></guid>
        <dc:creator><![CDATA[Cabo Wabo Addict]]></dc:creator>
        <pubDate>Fri, 15 Feb 2013 14:11:37 -0800</pubDate>
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    <item>
        <title><![CDATA[Outdated worry]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-80392]]></link>
        <description><![CDATA[&quot;the Undetectable Firearms Act of 1988, which bans the possession and manufacturing of firearms that can pass undetected through airport security&quot;It seems the new airport security scanners can detect an unused tissue in the pocket of my jeans, so should have no problem showing an all-plastic gun. The new scanners are not detecting metal, so the metallic content is not really relevant. It seems that law may have outlived its usefulness.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-80392]]></guid>
        <dc:creator><![CDATA[Day Dreamer]]></dc:creator>
        <pubDate>Mon, 08 Oct 2012 10:39:29 -0700</pubDate>
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    <item>
        <title><![CDATA[Not a metallic gun]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78241]]></link>
        <description><![CDATA[dduggerbiocepts,While it's good to see that you have a strong opinion about the topics, I'd like to point out that my report doesn't address the possibility of printing a metallic gun. The creators of the Wiki Weapon project stated that their goal is to come up with a design for a fully functional 3-D printable plastic weapon. And so far, despite rumors, no one's done it. Who knows if the group would be able to accomplish this, although they do feel it's possible. Even if Wilson's team were able to make a weapon that would only work once without blowing off the shooter's hand, they would have in a sense accomplished their goal. I'm definitely open to criticism, but please make sure to address what's actually being said in the post. Note: I also updated the post with new information on the plausibility issue.- Tuan]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78241]]></guid>
        <dc:creator><![CDATA[tuancnguyen]]></dc:creator>
        <pubDate>Fri, 07 Sep 2012 13:55:19 -0700</pubDate>
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    <item>
        <title><![CDATA[A new low point in &quot;Smart&quot; Plantet journalism.]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78125]]></link>
        <description><![CDATA[As pointed out in previous comments, even 3-D metal printers are metallurgically limited by the very process that allows the metal to be printed. You can't print processed harden metals - for springs, or sears, or barrels which all modern guns require. While it's possible to create effective &quot;springs of other materials like carbon fiber - they're composite materials and can't be printed either.  In reality while you may be able to technically print a gun, it would look nothing like, nor function like current firearms - and for all practical purposes have extremely limited practical durability and use if any at all. Why would you do all of this when you can go to HD and buy everything you need to build a functioning (limited only by the time you want to invest) firearm off the shelf. This is an absurd topic that is only interesting to someone who is totally clueless about the technical limitations of 3-D printing, the mechanical engineering of firearms and or is pathologically paranoid about guns. Apparently Tuan (like many of the SP's contributing editors) is a product of 3-D printers and like the 3-D &quot;guns&quot; he writes about, only consists of only a few plastic component parts that don't actually function as a total - gun or journalist. Enough with the hack and inaccurate sensationalistic copy to bait curious and or phobic readers. Shame on you Andrew Nusca for letting this continue, not exercising any QC over your contribution editors if not actively encouraging their sensationalism, and not providing really useful or reliable journalistic content. Shame on CBS for underwriting all of the above.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78125]]></guid>
        <dc:creator><![CDATA[dduggerbiocepts]]></dc:creator>
        <pubDate>Fri, 07 Sep 2012 07:41:24 -0700</pubDate>
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    <item>
        <title><![CDATA[Possibilities?]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78093]]></link>
        <description><![CDATA[Ceramic kitchen knives can be had at low prices, although not as low as stainless steel ones.  Can 1 of these knives be made with a 3D printer?  If so, a gun might be possible as well.  If not, well...What non-metallic material is heavy enough to make useful ammunition?]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78093]]></guid>
        <dc:creator><![CDATA[theotherwill]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 23:52:01 -0700</pubDate>
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    <item>
        <title><![CDATA[I'll be worried when..]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78047]]></link>
        <description><![CDATA[they show me a 3D printer that can 100 % produce a gun that will not explode in your face when the first round goes off.I can make a zip gun out of household items that would be more dangerous than any 3D printed gun.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78047]]></guid>
        <dc:creator><![CDATA[Hates Idiots]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 10:11:15 -0700</pubDate>
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        <title><![CDATA[Theory versus reality]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78041]]></link>
        <description><![CDATA[As has been pointed out already, polymer based compounds used in 3D printing systems cannot withstand the pressures inherent in modern day ammunition, even something as small as the .22 long rifle.  Also inexpensive parts assembled into &quot;Zip Guns&quot; have shown how easy and inexpensive it is to obtain a one use, drop it and leave weapon.  During WWII the US government developed the &quot;Liberator&quot; pistols, cheap stamped metal construction in a much more authoritative caliber, the .45 ACP.  The idea behind these were to be airdropped behind enemy lines for resistance fighters to use once or twice to obtain a &quot;real&quot; firearm from the enemy in calibers that could be liberated from the enemy supply chains to keep them viable.  When Polymer framed pistols were first developed the hue and cry of the press was that these would be used to defeat the metal detectors at security check points.  As usual they were so off the mark that it was laughable.  While the frames were indeed polymer, the slides, barrels and internal parts were still made from steel, enough so that any metal detector worth its' name would ring off the wall when one passed through its' portal.  3D printing is another one of those technologies that in time may be developed to the point of being used for this purpose, but there are much more effective and inexpensive means of producing the desired end result.  So titles such as &quot;3D Printing Producing Firearms&quot; is just another press buzzword title to generate readers for the author rather than actually report a factual occurrence.Here in Las Vegas we have a small company that is producing polymer lower receivers for AR 15 type rifles and carbines.  While these parts have undergone extensive testing by the maker showing that they can handle the conditions they are used in under several thousand cycles of operation and offer a much lighter weight end product when coupled with other similar parts, they are still just a non pressured part that house the parts that deal with the real work of firing a round of ammunition.  So until you can come up with a polymer that can act as the barrel and chamber of a firearm to withstand those pressures, this is still just an exercise in theory.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78041]]></guid>
        <dc:creator><![CDATA[treadhead1952]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 08:32:22 -0700</pubDate>
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    <item>
        <title><![CDATA[2nd Time: hahahahahahahahahahaha]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78033]]></link>
        <description><![CDATA[Tuan 'Chicken Little' is at it again! He actually wrote an article (see link above) that says:&quot;Russians test a gun that turns people into zombies&quot; and in the article he states &quot;Right now theres no indication that anyones perfected anything close to an actual 'zombie gun'&quot;It says in this article that you can print a working gun on a 3D printer, but fails to mention that only the stock, grip, sights and a few othe peices were made. he also fails to mention that the firing chamber was taken from a purchased gun and is made of steel.PLEASE quit with the sensationalitic journalism, 'cause you don't know how to do it right.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78033]]></guid>
        <dc:creator><![CDATA[Cabo Wabo Addict]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 08:05:33 -0700</pubDate>
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    <item>
        <title><![CDATA[Reality Check Time!]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78031]]></link>
        <description><![CDATA[No current weapons have polymermer barrels!  Is the blogger's lack of knowledge regarding materials, technology and the history of $10 zip guns more apparent?  Advanced non-mettalic materials could be used for shell casings and bullets, but these materials are simply not available to the general public and are very, very expensive.Not knowing the motivation beyond uninformed &quot;gee wow&quot;, I'm wondering when we get the follow-on &quot;Build a Phaser at Home&quot; blog .... perhaps after research on old Popular Mechanics issues?]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78031]]></guid>
        <dc:creator><![CDATA[Javelineer2]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 07:40:50 -0700</pubDate>
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    <item>
        <title><![CDATA[Tuan, are you now the official SmartPlanet &quot;personal weapons&quot; editor?]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78023]]></link>
        <description><![CDATA[I mean, that's fine with me.  We just ought to make it official.  A SmartPlanet &quot;Personal Weapons&quot; section would probably be more useful in real life than the seemingly defunct &quot;Rethinking Healthcare&quot; section was.  Although, I do miss my lively exchanges with Dana Blankenhorn, and wish he were here today to explain why my health insurance costs nearly $5,000/year more today than the $2,500/year less that Obama promised 4 years ago.  That $7,500/year deficit really hurts.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78023]]></guid>
        <dc:creator><![CDATA[JohnMcGrew@...]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 07:20:25 -0700</pubDate>
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        <title><![CDATA[Glass firearms]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78014]]></link>
        <description><![CDATA[Good morning Tuan, you are an excellent reporter, but you seem to be a bit preoccupied with firearms, .  During WW-II many pistols were made from pipe, bamboo  etc.  It is 'impossible' to keep a firearm away from those that would use it illegally.  In the case of an all glass / ceramic firearm, you would still have a very formidable task of developing  all glass ammunition.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78014]]></guid>
        <dc:creator><![CDATA[Don Jose de La Mancha]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 07:06:02 -0700</pubDate>
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        <title><![CDATA[Danger Will Robinson!!]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78008]]></link>
        <description><![CDATA[Oh here we go again....]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-11615-78008]]></guid>
        <dc:creator><![CDATA[GregGold]]></dc:creator>
        <pubDate>Thu, 06 Sep 2012 06:53:06 -0700</pubDate>
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