Pseudo Tapered Thera Tubes Chrony Tests

Discussion in 'General Slingshot Discussions' started by Tobias, Dec 15, 2012.

  1. Tobias

    Tobias New Member

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    just want to share with you some chrony results...<br><br>i made some tests with tapered Thera tubes!<br><br>at first i have to say i am impressed from the speed, i am stop shooting <br>this tubes two year ago and switch to Bands because they are much more <br>efficient and faster.<br><br>since i like the pseudo tapered chinese tubes i think about to test the Thera tubes again!<br>and it looks like they are better for big ammo than i have thought.<br><br>here the chrony results :<br><br><strong>Thera tube green:</strong> at 25°C<br>20mm steel 70 m/s (80 Joule !!)<br>16mm steel 87 m/s (60 Joule )<br><br><strong>Thera tube red</strong> at 5°C<br>10mm steel 83mps<br>13mm steel 73mps<br>16mm steel 59mps<br><br>i really dont think befor that i can shoot 80 Joule with Thera tube green. <br><br>and the tubes looks very fresh after all this tests! I can see no signs of use looks like new <img src="http://slingshotforum.com/public/style_emoticons/default/smile.png" border="0" alt=""><br><br>of course i shoot this results with full butterfly and fast release!<br><br>if you want test this, you need very strong thumb and indexfinger or use the Fistgrip! (i use the Fistgrip for this tests)<br><br>this was also the hardest test for my new Panther grip! I was surprised <br>that there was no problem at all with a 4cm high fork! and these heavy <br>bands! I really like this new grip.<br><br>the next are the blue tubes! but not this year, have to build a new ss first!<br> the green one are the bigest for the panther slots... (it´s more a <br>design for chinese tubes...)<br><br>thats all for today <img src="http://slingshotforum.com/public/style_emoticons/default/smile.png" border="0" alt=""><br>Tobse<br><br><a href="http://www.servimg.com/image_preview.php?i=91&u=16906761" class="postlink" target="_blank" rel="nofollow"><img src="http://i11.servimg.com/u/f11/16/90/67/61/panthe10.jpg" border="0" alt=""></a><br><br><a href="http://www.servimg.com/image_preview.php?i=92&u=16906761" class="postlink" target="_blank" rel="nofollow"><img src="http://i11.servimg.com/u/f11/16/90/67/61/img_1410.jpg" border="0" alt=""></a><br><br><a href="http://www.servimg.com/image_preview.php?i=93&u=16906761" class="postlink" target="_blank" rel="nofollow"><img src="http://i11.servimg.com/u/f11/16/90/67/61/img_1411.jpg" border="0" alt=""></a>
     
  2. 22lr

    22lr New Member

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    How do you taper tubes.
     

  3. Arturo Borquez

    Arturo Borquez Administrator

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>22lr wrote:</b></span></td></tr>
    <tr><td class="quote">How do you taper tubes.</td></tr>
    </table>
    <span class="postbody"><br>The way it is shown, that's a pseudo-taper a section with 2 tubes and a section with 1 tube ...</span>
     
  4. 22lr

    22lr New Member

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    Does it give more power
     
  5. Arturo Borquez

    Arturo Borquez Administrator

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>22lr wrote:</b></span></td></tr>
    <tr><td class="quote">Does it give more power</td></tr>
    </table>
    <span class="postbody"><br>Yes, indeed same principle as with tapered bands, the difference is that with tubes is a "discrete" tapering and with bands is a "continuous" tapering ... </span>
     
  6. 22lr

    22lr New Member

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    how do you do this.<br><br><img src="http://www.dankung.com/emart/bmz_cache/e/eaec19ff7dc37f815acfaa63a02f2fe6.image.450x600.jpg" border="0" alt="">
     
  7. Tobias

    Tobias New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Arturo Borquez wrote:</b></span></td></tr>
    <tr><td class="quote">
    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>22lr wrote:</b></span></td></tr>
    <tr><td class="quote">Does it give more power</td></tr>
    </table>
    <span class="postbody"><br>Yes, indeed same principle as with tapered bands, the difference is that with tubes is a "discrete" tapering and with bands is a "continuous" tapering ... </span>
    </td></tr>
    </table>
    <span class="postbody"><br><br>thats right Arturo!<br><br>what i like at tubes: you need only a knife or something to cut the tubes! and you can made a very good bandset and they last longer.<br>Flatbands are still a bit more efficent but not soo much like with untapered tubes if you want to shoot really fast flatbands are still better.<br><br>if you taper it like Zwillie recommends it in this table, you are nice with tubes.<br><a href="http://www.servimg.com/image_preview.php?i=94&u=16906761" class="postlink" target="_blank" rel="nofollow"><img src="http://i11.servimg.com/u/f11/16/90/67/61/tapere10.jpg" border="0" alt=""></a></span>
     
  8. Arturo Borquez

    Arturo Borquez Administrator

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Tobias wrote:</b></span></td></tr>
    <tr><td class="quote">
    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Arturo Borquez wrote:</b></span></td></tr>
    <tr><td class="quote">
    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>22lr wrote:</b></span></td></tr>
    <tr><td class="quote">Does it give more power</td></tr>
    </table>
    <span class="postbody"><br>Yes, indeed same principle as with tapered bands, the difference is that with tubes is a "discrete" tapering and with bands is a "continuous" tapering ... </span>
    </td></tr>
    </table>
    <span class="postbody"><br><br>thats right Arturo!<br><br>what i like at tubes: you need only a knife or something to cut the tubes! and you can made a very good bandset and they last longer.<br>Flatbands are still a bit more efficent but not soo much like with untapered tubes if you want to shoot really fast flatbands are still better.<br><br>if you taper it like Zwillie recommends it in this table, you are nice with tubes.<br><a href="http://www.servimg.com/image_preview.php?i=94&u=16906761" class="postlink" target="_blank" rel="nofollow"><img src="http://i11.servimg.com/u/f11/16/90/67/61/tapere10.jpg" border="0" alt=""></a></span>
    </td></tr>
    </table>
    <span class="postbody"><br>Yea ... very <img src="http://illiweb.com/fa/i/smiles/icon_cool.gif" alt="Cool" longdesc="6"> I should give a try to the tubes given that them lasts a way more than bands ... I don't shoot butterfly only 3/4 (I believe I get 60 to 70 mps) mostly enough for my needs ... can destroy food cans with the rods ... pretty amusing ...</span>
     
  9. I will deffinatly have to give this a try since I normally shoot tubes and this looks like a nice way to up the speed of my shots. Thanks Tobias!
     
  10. 22lr

    22lr New Member

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    What anout my question
     
  11. <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>22lr wrote:</b></span></td></tr>
    <tr><td class="quote">What anout my question</td></tr>
    </table>
    <span class="postbody"><br><br>I thought that was what Arturo and Tobias just did?</span>
     
  12. 22lr

    22lr New Member

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    you see those tubes i posted are not folded. They just are tapered
     
  13. Arturo Borquez

    Arturo Borquez Administrator

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>22lr wrote:</b></span></td></tr>
    <tr><td class="quote">you see those tubes i posted are not folded. They just are tapered</td></tr>
    </table>
    <span class="postbody"><br>Those are straight tubes, please watch <a href="http://www.youtube.com/watch?v=igENqEJw43M" class="postlink" target="_blank" rel="nofollow">THIS</a> to understand what means "tapering" in ss terminology and how and why "tapering" is more efficient ... you will find out why Tobias speaks about "pseudo-tapering" in this thread ...</span>
     
  14. zwillie

    zwillie New Member

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    Hi,<br>those tubes are made by Dankung.<br>I see no way to make them by DIY.<br>I got an idea with dipping in liquid latex...<br><br><a href="/t2338-dipping-tubes-into-liquid-latex-for-tapering">http://theslingshotforum.forumotion.com/t2338-dipping-tubes-into-liquid-latex-for-tapering</a>
     
  15. Tobias

    Tobias New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>22lr wrote:</b></span></td></tr>
    <tr><td class="quote">you see those tubes i posted are not folded. They just are tapered</td></tr>
    </table>
    <span class="postbody"><br><br>they are factory tapered, they are mostly not so much tapered and this are no butterfly tubes.<br><br>if you made your own pseudo tapered tubes you have the opportunity to do it as you like it, this mean you can chose every tube you want and taper how much you like. <br>I think you can not buy a factory tapered tube set that made 80 Joule <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"> and if you build it your self is still the question if you can shoot it <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15"></span>