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Old 12-23-2012, 11:01 PM
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Default 9" nails as ammo: New slingshot pumpgun!



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Here is my latest work... a repeating slingshot crossbow, shooting 9 inch nails.

This is in continuance with my Chu-Ko-Nu based design line. This time, it is bigger than the pencil shooter, but a lot smaller than the chest mounted spear launcher.



The ammo is - nine inch (23 cm) nails. Those are cheap, about 8 Euro-cents a pop (10 Euros for 120 of them). Of course you have to cut of the head, done in about one minute.



The repeating action is done by pressing the butt against the chest and pulling back with both arms, like in a rowing machine. This is needed as you need a lot of draw force to throw the heavy nails - each weighs 76 gramms (1276 gr). The magazine fits ten of them.



With a bit of extra effort, you can very easily enhance the tip by sharpening it. I even hardened the tip of this one.



It works great. I may add more rubber soon, but already this is very effective. Like a Chu-Ko-Nu, but more compact and with a trigger!

Here is the video:

Old 12-23-2012, 11:18 PM
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Love it! My wife is going to kill me when I spend Christmas afternoon in the basement!

Thank you Joerg, I look forward to your projects, and Merry Christmas to you to!

Old 12-23-2012, 11:54 PM
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Son of a nail shooter.....


I was just watching your channel after losing all my accounts on YouTube. I knew you were here and wanted to thank you for getting me involved with slingshots. Good stuff !!


Been a few so I need to catch up on the videos but man if I had the time and talent to do half of those things you make, genius.
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Old 12-24-2012, 01:07 AM
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Awesome. A spike thrower.

I made one in high school that fired 5" nails, but it wasn't a repeater.
Old 12-24-2012, 05:57 AM
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Awesome, As usual!

Merry Christmas.
Old 12-24-2012, 05:58 AM
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kewlness of kewl for sure.
Old 12-27-2012, 01:08 PM
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Default Plans???

What a wonderful idea! Your ingenuity is quite impressive! I have all the tools to make one of these. Are any plans available - even an outline of the pieces and a list of parts involved would help. Thanks! (Please message me privately? I don't think I can contact you until I post 4 more times.)
Old 12-27-2012, 01:15 PM
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I don't have plans, and even if I would, every dimension is derived from the ammo you are using. So you must find the right nails first. If you can't find EXACTLY the same ones I use, all the sizes would be off.
Old 12-27-2012, 03:13 PM
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You are very creative, can I ask where you are from? Serious question, is this just a hobby or are those (slingshots and improvised projectiles) what you are left with to defend yourself with?
Old 12-28-2012, 12:28 AM
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I am a German. And I do legally own 34 guns, so slingshots is very much a hobby of mine.

Quite often, people believe that we have a very strict gun law in Germany. That's not really the case. You just need a license. If you want to own guns, you can get them (as long as your criminal record is clean). But you have to prove that you are competent, practice frequently and keep the guns in a safe. Makes sense to me.
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Old 12-29-2012, 06:55 AM
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You are insane! and I mean that in a good way, I allways was jelous of people that can think outside the box like you do and able to make some very cool things..
Old 12-29-2012, 07:17 AM
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That is really great. Did someone mention the plans are online?
Old 12-29-2012, 07:21 AM
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never leave a man alone in a basement....
:-)
no telling what can happen..
Old 12-29-2012, 07:21 AM
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Great video as always.
Keep up the good work.
Thanks for sharing with us.
Old 12-29-2012, 07:27 AM
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Nine Inch Nails made some of the best music ever!
Old 12-29-2012, 08:26 AM
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Quote:
Originally Posted by Karnus View Post
Nine Inch Nails made some of the best music ever!
And that made you closer to the downward spiral?
Old 12-29-2012, 09:32 AM
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Quote:
Originally Posted by AquaHull View Post
And that made you closer to the downward spiral?
In my empire of dirt? Yes.
Old 12-29-2012, 09:42 AM
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Karnus, If you get upset about your downward spiral you can consider putting Alice in chains.
Old 01-02-2013, 01:17 AM
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Amazing craftsmanship. I like the Chu-Ko-Nu inspired design.
Old 01-27-2013, 09:08 AM
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Wow I am extremely jealous. I am very scientific minded but not quick with engineering. My biological dad is a very good machinist and he machines his own mini-engines and mini-cannons amongst other things but I didn't get that from him and don't talk with him much. Although with a rough idea of dimensions I think I would favor something like this over a gun. One question though, would 9" nails be considered ap rounds on something like Kevlar?
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