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The Slingshot Channel Thread

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
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Unread postAuthor: CpTn_lAw » Sat Sep 12, 2009 12:03 pm

Almost 132 joules with a slingshot XD this is totally cool :D ; now you know what's the next thing to do : upload vids!!!!!
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Unread postAuthor: JoergS » Sat Sep 12, 2009 2:08 pm

Here is the video, guys.

Enjoy!

Jörg


[youtube]http://www.youtube.com/watch?v=Bm5YOYrRejY[/youtube]

Video embedded by jrrdw.
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Unread postAuthor: jackssmirkingrevenge » Sat Sep 12, 2009 2:39 pm

Looks like quite a workout, your grin at the end is quite justified :) congratulations. Now for some damage shots though ;)
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Unread postAuthor: JoergS » Sat Sep 12, 2009 3:22 pm

Yeees.... Destruction!!!!

Can't wait.
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Unread postAuthor: JoergS » Sun Sep 13, 2009 2:31 pm

Here is the impact video.

[youtube]http://www.youtube.com/watch?v=eCUx_vSIYkc[/youtube]

Regards, Jörg
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Last edited by JoergS on Sun Sep 13, 2009 2:34 pm, edited 1 time in total.

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Unread postAuthor: qwerty » Sun Sep 13, 2009 2:34 pm

the link dosent work :wink:
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Unread postAuthor: c11man » Sun Sep 13, 2009 2:35 pm

damn nice vid man!
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Unread postAuthor: JoergS » Sun Sep 13, 2009 2:40 pm

qwerty wrote:the link dosent work :wink:


Try again, I misclicked.
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Unread postAuthor: POLAND_SPUD » Sun Sep 13, 2009 4:45 pm

nice videos... but either some of the shots were weaker than the rest or LCDs are really tough...probably it's the latter as I can see as energy was being transferred to the backstop

you're Heinz Guderian of slinghshots :wink: no offence intended you're just that good
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Unread postAuthor: JoergS » Sun Sep 13, 2009 5:10 pm

Plastic IS tough, man.

Guderian? I am no nazi, those cruel, stupid, crazy, sick guys set the world aflame. But I can see that you meant that as a compliment, and I truly appreciate that.

My tests show that a slingshot has limits. No comparison to a powerful firearm. But fun!

And legal.

Jörg
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Unread postAuthor: THUNDERLORD » Sun Sep 13, 2009 5:43 pm

...No comparison to a powerful firearm. ...


With heavy, longer ammo, say arrows they come close at close range probably.
Also, underwater, latex/ similar bands will propel a projectile further than a firearm, much more effectively too...(edit: normal firearm/ammo)

Heck, the for the amount of time and money going into some spud projects probably atleast two or three of these could be built and registered legally...
(just check the sling pic w/75 rd. drum mag... :twisted: )
But that's not what it's about ...

Alternatives, areas for experimentation, discovery of benefits and advantages for different applications...etc.,etc.

Cool vid Jeorg!!!
(the cat part was funny too, nice music as well).
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Unread postAuthor: POLAND_SPUD » Sun Sep 13, 2009 6:01 pm

uhmm sorry I shouldn't put it that way... that was pure PUI :wink:

do you live in Germany ?? I am asking because gun laws in Germany seem to be as restrictive as in Poland...

are you into pneumatic spudguns ??
IIRC german law is similar to polish in that respect... so there is a limit on muzzle energy (17J in poland)...


Doesn't the device that you use one this gun count as a trigger mechanism??
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Unread postAuthor: jackssmirkingrevenge » Sun Sep 13, 2009 11:22 pm

POLAND_SPUD wrote:nice videos... but either some of the shots were weaker than the rest or LCDs are really tough...probably it's the latter as I can see as energy was being transferred to the backstop


It's a function of the relatively low velocity of the projectile. The energy is certainly there but since it's travelling so slowly, the target has time to deform and absorb the impact without penetration.

Good stuff Joerg, you set out to push the envelope and succeeded :)
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Unread postAuthor: JoergS » Mon Sep 14, 2009 12:57 am

POLAND_SPUD wrote:do you live in Germany ??
are you into pneumatic spudguns ??

Doesn't the device that you use one this gun count as a trigger mechanism??


Yes, I live in Germany. No, I am not into spudguns. The limit for these is 7,5 Joules here (a joke) and even if you keep that limit you need a license to make them, they qualify as guns.

The release does not qualify as a trigger mechanism. The law says that it must release "stored energy" and then the projectile must go through a barrel. So crossbows are OK. Spuds aren't.

Jörg
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 14, 2009 1:12 am

JoergS wrote: The release does not qualify as a trigger mechanism. The law says that it must release "stored energy" and then the projectile must go through a barrel. So crossbows are OK. Spuds aren't.


So technically, if you made a pneumatic that used a piston to strike a projectile, in the same way that a nailgun drives nails without them coming to contact with the air, it would be legal?

A bit like the way the (ironically also called "crossbow") Armbrust anti-tank launcher works ;)
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