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Discussion Starter #1
I explored the pump concept a bit more.<br><br>This time I made one out of cardboard, entirely with desk tools and materials. No Thera band, no scroll saw, no screws. <br><br>While cardboard, if used right, can be incredibly strong, it is a b..ch to work with. You really have to take care. <br><br>The shooter holds 12 two-eurocents-coins in the mag. You can also use US dimes and M5 washers, all having about the same dimensions. <br><br>It is impressive how much power this little thing has, propelled by just 10 normal, thin office rubber bands. <br><br><embed pluginspage="http://www.macromedia.com/go/getflashplayer" src="http://www.youtube.com/v/_rCexho3sSE" width="425" height="350" type="application/x-shockwave-flash" wmode="transparent" quality="high" scale="exactfit"></embed>
 

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<div>That's awesome kinda a fun thing to do with my 5 year old little bro so he can get into the sling. No offence not saying it's a kids toy just that cardboard and the tools u used are something I trust him more with then saws and wood files lol</div><div class="clear"></div><div class="signature_div">
<br>Just ask me and I'll help if I can <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1">
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<div>Any chance you could put a pdf up for it?</div><div class="clear"></div><div class="signature_div">
<br>Just ask me and I'll help if I can <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1">
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<div>nice!<br>I wood like to see it shooting against wood or ballistics jel!<br>You can hammer coins into wood but will this shoot them into wood?</div><div class="clear"></div><div class="signature_div">
<br>I love making slingshots and slingshot crossbows<br>check out my youtube channel <a href="https://www.youtube.com/user/theartofweapons/featured" class="postlink" target="_blank" rel="nofollow">here</a> for more!<br><img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7">
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Discussion Starter #11
This one is too weak. I tried to attach Thera Gold, but it wouldn't hold. A wooden one would be a lot more powerful. I think I can shoot a coin at about 90 m/s. If it hits a board with the rim first, it would certainly go in quite deep.
 

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pretty cool design, i'm guessing it has similar potential to my garbage/scavenger slingshots since it uses the same number of office bands (presumably 5/5), with the advantage of having a magazine allowing for rapid fire and the potential for more accurate shots due to it's mechanism.<br><br>+1 to wanting to see a ballistic gel test!
 

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How did i miss that one!!!! <img src="http://illiweb.com/fa/i/smiles/icon_redface.gif" alt="Embarassed" longdesc="10"><br>I use my PFS or a little natural for indoor shooting,... too powerful. But something like that Coin Pump Gun would be great for inside. It would be great if it was shooting plastic BB' s too.
 
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