Slinging.org Forum - Compound Sling

Thomas Descens Rocks? Posts: 284 Gender:	Re: Compound Sling Reply #135 - Nov 28^th, 2008, 1:08am Yurek I used the first video in the second group of 2 for your average of 80m/sec which included the deduction of e.t. between the two sound sources. http://www.kajakowe.com.pl/sling/MVI_9693.AVI Your efforts are greatly appreciated by all of us, thank you. tom
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Re: Compound Sling
Reply #136 - Nov 30^th, 2008, 12:01pm

YESSSSS !
proper video of a working compound sling

Major kudos to yurek !

Quote:

The smaller projectile travelling at almost twice the speed has very close to the same energy as the conventionally powered larger but slower moving one.

Which was my original idea

Okay now yurek's got one that works - any chance of plans or a buildalong yurek ? Pretty please.
What you have there looks perfect for 50 calibre paintballs, which is what started this rollercoaster of a journey in the first place lol.

You guys are amazing.

So, I've also got this idea for a perputual motion engine....

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jax Interfector Viris Spurii Take me out to the ball game........ Posts: 1160 Gender:	Re: Compound Sling Reply #137 - Nov 30^th, 2008, 12:18pm This isn't an engine,but it sure is cool. http://www.youtube.com/watch?v=us7YB7eiOeQ
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Joseph Curwen Tiro Wild sling, you make my heart sing... Posts: 77 Gender:	Re: Compound Sling Reply #138 - Dec 17^th, 2008, 5:37pm Yurek, could you please post a picture of your sling? I don't understand the release mechanism Thanks
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Masiakasaurus

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Re: Compound Sling
Reply #139 - Jan 26^th, 2009, 10:44am

Using the weaver/figure 8 release, a compound sling without a sheathing tube could work. I haven't read through the whole thread so I may repeat someone. With LONG cords folded over twice and strands splitting off of the release and retention cords about a third of the distance from the pouch, a short grip can be maintained. Also and trilateral pouch proves both good grip and good release for the projectile. Using this configuration the booster/ballast doubles as the projectile. Four cords are in the hand at the beginning of the throw, but on the second loop around the two strand from the middle of the retention and release cords would need to be released. The length of the sling triples, and on the third loop around (or the end of the second) the actual release cord is let go and the projectile leaves with triple the momentum as with a normal sling. I'll post pics later. I just need a little help with the posting pics part. Sorry for being such a n00b!

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« Last Edit: Jan 26^th, 2009, 6:34pm by Masiakasaurus »

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jerome49 Novicius long is the way, and hard... Posts: 10	Re: Compound Sling Reply #140 - Apr 22^nd, 2011, 7:39am wow, fascinating idea! i have tried the link-http://www.kajakowe.com.pl/sling/MVI_9693.AVI but it does not work, anyone direct me to one that does? Thank you!
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jax Interfector Viris Spurii Take me out to the ball game........ Posts: 1160 Gender:	Re: Compound Sling Reply #141 - Feb 17^th, 2012, 8:23am Yeah,those videos are gone
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nemo

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Re: Compound Sling
Reply #142 - Feb 17^th, 2012, 8:35am

Would be great to see them! I have actually had this thread saved in my favourties for some time now, its a concept that really interests me. It really is the biggest modern step forward in sling design it looks to me, and it would be great if we could get some use out of it.

(Also the concept of throwing further always interests me Tongue

)

Nemo

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Dan

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Re: Compound Sling
Reply #143 - Feb 17^th, 2012, 9:26am

Quote from Masiaka on Jan 26^th, 2009, 10:44am:

Using the weaver/figure 8 release, a compound sling without a sheathing tube could work. I haven't read through the whole thread so I may repeat someone. With LONG cords folded over twice and strands splitting off of the release and retention cords about a third of the distance from the pouch, a short grip can be maintained. Also and trilateral pouch proves both good grip and good release for the projectile. Using this configuration the booster/ballast doubles as the projectile. Four cords are in the hand at the beginning of the throw, but on the second loop around the two strand from the middle of the retention and release cords would need to be released. The length of the sling triples, and on the third loop around (or the end of the second) the actual release cord is let go and the projectile leaves with triple the momentum as with a normal sling. I'll post pics later. I just need a little help with the posting pics part. Sorry for being such a n00b!

It's kinda weird reading a thread where the only member u know is CA. and your post is erally the first one I've mostly understood. Pics would be great!

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Masiakasaurus Slinging.org Moderator mah-SEE-a-kah-SOR-us Posts: 4929 Gender:	Re: Compound Sling Reply #144 - Feb 17^th, 2012, 10:31am Knowing what I do now, I think my idea would only work with a helicopter or pirouette throw and would be severely limited by drag on the cords. That's why I never got pictures up, I was wrong. Matthias and Yurek had great ideas, though.
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jax

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Re: Compound Sling
Reply #145 - Feb 19^th, 2012, 3:25am

Quote from nemo on Feb 17^th, 2012, 8:35am:

Would be great to see them! I have actually had this thread saved in my favourties for some time now, its a concept that really interests me. It really is the biggest modern step forward in sling design it looks to me, and it would be great if we could get some use out of it.

(Also the concept of throwing further always interests me Tongue

)

Nemo

There are actually some major advances that have been made and shared here on this forum,most members just choose to ignore them and continue to produce museum type replicas.

Brett

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Pikåru

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Re: Compound Sling
Reply #146 - Feb 20^th, 2012, 5:41pm

I'm relatively new here and haven't been able to read through everything so new sling technologies are definately an eye catcher. I would be interested in seeing those modern advances. I like this thread but haven't seen any pictures of finished products. You're right Jax. For the most part we're just replicating museum pieces where the only thing that has significantly changed is the materials being used. Where are these technological advances in slinging?

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Masiakasaurus Slinging.org Moderator mah-SEE-a-kah-SOR-us Posts: 4929 Gender:	Re: Compound Sling Reply #147 - Feb 20^th, 2012, 5:46pm Off topic replies have been moved to This Thread
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Masiakasaurus

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Re: Compound Sling
Reply #148 - Feb 20^th, 2012, 6:50pm

A lot of the pictures have been taken down from their original hosts or the links have been moved, but there are a few on the thread. http://slinging.org/forum/YaBB.pl?num=1174772635/60#61

As for the technological advances in slinging, they mostly happened early in development. People started carving sling stones instead of having to hunt for naturally round ones. Somewhere down the line, military slingers switched to cast lead bullets for greater range and damage. Someone in the Persian army came up with a way to sling darts. Other than the shape of the glans and the materials the sling and glans are made from there's little in slinging that can easily be improved. Look at the advances in sports between ancient times and now. A long time ago people used sewn up animal skins (or organs) as balls and nowadays we use... more perfectly shaped animal skins as balls. There are now balls made from plastic and rubber and balls with a high level of precision in their shape, but for most purposes sewn up leather is still in use.

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Dan Interfector Viris Spurii SlingingGuide Moderator Slinging Rocks! Posts: 3396 Gender:	Re: Compound Sling Reply #149 - Feb 21^st, 2012, 8:26am Wow that was a great anology! So they technological andvances in slinging weren't so much in the slings but in the ammo! Man, common sense can take you a long way, good post.
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