Tennis ball launcher question for Joerg

Discussion in 'General Slingshot Discussions' started by Das, Dec 13, 2012.

  1. Das

    Das New Member

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    Hello from worcestershire, U.K. Joerg please would it be possible to let me know the band dimensions you used for the tennis ball slingshot in your video, as i am building a large fishing bait launching catty (slingshot) for a similar weight and butterfly technique for my brother (whos very strong)
     
  2. MaddyMax

    MaddyMax New Member

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    go to<u> <a href="http://www.slingshotchannel.com/band_calc.html" class="postlink" target="_blank" rel="nofollow">the band calculator</a> </u>and select 24.4 steel or 21.6 lead instead of "tennisball". should be about the same max weight.
     

  3. meeeee!

    meeeee! New Member

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    use the strongest bands possible.
     
  4. JoergS

    JoergS Administrator

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    Meeee! is absolutely right. Heavy bands are needed.
     
  5. Das

    Das New Member

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    thanks for the replies, when i finally work out how to attach an image i'll put in a piccy<img src="c:%5Cbig-catty.jpg" border="0" alt="">
     
  6. Attaching a link or pic is pretty easy (there are "buttons" for those actions.) You just have to be a member for a week? I think it is before you can post links, vids, etc.
     
  7. Das

    Das New Member

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    I've tried some easier bands to start with (2 layers TBG 40mm to 20mm 32cm 183cm draw) and get about 22m/s judging by vertical flight time of about 4.5 seconds up/down,this is about 15.5Kg draw.<br>I think i can manage 2 layers 60mm to 20mm 31cm ~21Kg, more taper and a bit more stretch, but i think it needs 3 layers - which i definately can't pull at the moment (i'm sure joerg could).<br><br>Anyway i've given next doors collie some exercise fetching balls today.<img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2">
     
  8. Das

    Das New Member

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    <img src="http://i12.servimg.com/u/f12/17/99/08/66/img_0310.jpg" border="0" alt=""><br><br>Tennis ball catty (brace because of high forks and damaged wrists), with my favorite normal catty for comparison, both ash forks
     
  9. MaddyMax

    MaddyMax New Member

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    you did a great job on both catty's. very nice indeed!
     
  10. tokSick

    tokSick Senior Member

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    They are really nice looking.<br>I like the tennis ball one, i might make one for playing with my dogs.<br>Great job!
     
  11. <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>MaddyMax wrote:</b></span></td></tr>
    <tr><td class="quote">you did a great job on both catty's. very nice indeed!</td></tr>
    </table>
    <span class="postbody"><br><br>+1</span>
     
  12. FIAAO

    FIAAO Failureisalwaysanoption

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    Very nice slingys! They look very classic (wich I like <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"> )
     
  13. JoergS

    JoergS Administrator

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    Das, it is really not necessary to use high forks for launching tennis balls. I use the Hand Howitzer with it's low forks for the purpose. I got to 57 m/s with a tennis ball - in warm weather of course. <br><br><a href="http://www.youtube.com/watch?v=zjGhYXzaJaM" target="_blank" rel="nofollow">http://www.youtube.com/watch?v=zjGhYXzaJaM</a><br><br>Actually tennis balls are very good for those who are afraid of low forks... a hand hit would not break your bones.
     
  14. Das

    Das New Member

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    Remember this is for fishing bait balls eventually and a strong but ineperienced user, my catapults that I make seem to be lower and lower foirks as i get more experience.<br>57m/s is very fast, I have to replace the pouch for a smaller one as the bait balls are smaller, so i will try and build a slingshot to replace this one with lower forks and no brace.<br>The tennis ball is very easy to grip, so much stronger bands than i could normally pull can be used<br><br>I have managed a nipple hit with the tennis ball - that hurt - even though its cold here and the bands are slow atm.<br><br>Off to work now, thanks Joerg<br>