Theraband tubing colour

Discussion in 'General Slingshot Discussions' started by Eggster, Mar 10, 2012.

  1. Eggster

    Eggster New Member

    8
    0
    0
    Hi there<br><br>I am planning on building a slingshot crossbow implementing a draw length extention using two rollers (much like the bull pup in Jörg's how-to video) in order for the frame to be as compact as possible. I am planning on using Theraband tubing for neatness and longevity sake and further I want maximum power and speed from the crossbow, so I thought of using Theraband silver tubing, but I am not planning on using "connon ball size" ammo when shooting it, so here are my questions:<br><br>Will I be able to use the silver tubing with lighter ammo and, if not, what are the implications? Which colour tubing would be the best to use in such a design?<br>How can I find the relation between ammo mass and rubber power?<br><br>I am looking forward to reading your answers
     
  2. SkauneJohan

    SkauneJohan Member

    144
    0
    16
    I wonder just the same thing, I know that Jørg have used green tubes for guns like his gatling and i know he had black ones for his medieval style crossbow and also silver<br><br>but I have also seen him use silver tube for his side by side gun<br><br>what I am most curious about is the tube of tube most suited for 16mm marbles <br><br>cheers/j
     

  3. DaveSteve

    DaveSteve New Member

    218
    0
    0
    Kugel-winnie offers a 'gamekeeper' catapult with a green tubing. <br><br>Suitable for 9.5 mm steel balls. I woder if he uses green thera tubing? <br><br>Does anybody have experience with thera tubing?
     
  4. cbsmith111

    cbsmith111 New Member

    117
    0
    0
    What size and material ammo are you planning on using. I don't know the exact amount of tubing for a particular ammo, but I do know that the silver tubing is pretty heavy. I doubt you would get good results using tiny ammo with it.
     
  5. DaveSteve

    DaveSteve New Member

    218
    0
    0
    My prefered ammo would be 12 mm steelballs. Hunting?<br><br> For practicing at home I also use 15 mm marbles. <br><br>I'm interested in tubing because it suppose to last longer.
     
  6. cbsmith111

    cbsmith111 New Member

    117
    0
    0
    I'm not sure really. Maybe you could go by pull force. You should be able to find specs on the pull force of the tubes on the theraband website. if you compare that to the pull force of the amount of flatband you normally would use (or even the amount that joerg's calculator would tell you to use) I would think it would put you in a decent ballpark. Without any more experience or knowledge than what I have, that's how I would try to figure it.
     
  7. Ryan Wigglesworth

    Ryan Wigglesworth Senior Member

    1,570
    0
    0
    <div>You want something light and snappy man, the blue tube or blk, was really tough. I wouldn't use that ! <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"> Hope I helped</div><div class="clear"></div><div class="signature_div">
    <br><a href="http://voiceofquran.info/mp3_files/german_quran_mp3/001.mp3" target="_blank" rel="nofollow">http://voiceofquran.info/mp3_files/german_quran_mp3/001.mp3</a><br>my website! <a href="http://wigglesworthswoodwork.webs.com/" target="_blank" rel="nofollow">http://wigglesworthswoodwork.webs.com/</a><br>For your spiritual well being ( more important than anything ) <a href="http://muttaqun.com/" target="_blank" rel="nofollow">http://muttaqun.com/</a>
    </div>
     
  8. DaveSteve

    DaveSteve New Member

    218
    0
    0
    I looked at Trumark rubber replacement tubing. They have a black (heavy) and a red (hi-velocity). Also I checket the chinese tubing 20-50 ect.<br><br>Is thera tubing similar to those or should I buy the ones mentioned above?<br><br>Would be good to test them against each other.
     
  9. cbsmith111

    cbsmith111 New Member

    117
    0
    0
    That trumark tubing, unless you've found it in raw form somewhere, is already cut into standard slingshot bands. So it won't be long enough. Remember the Chinese use their tubing doubled over so thy are normally very thin with a pretty light pull. I imagine you will want a much heavier pull on your crossbow than on a conventional slingshot. A friend of mine had some theratube blue that was heavy in single strands but not super heavy. I would order several feet of either that or the next color up. You can always go heavier later if you need to. Nothing wrong with good old trial and error.
     
  10. DaveSteve

    DaveSteve New Member

    218
    0
    0
    I do have a conventional (homemade) slingshot. I don't shoot butterfly. My drawlength is short so I figure the trumark tubing could fit. I will try though to order several colors and brands, included thera band gold and do this 'old trial and error'.<img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"> I may get access to a chrony and can actually see which band or tubing works best for my prefered ammo.
     
  11. cbsmith111

    cbsmith111 New Member

    117
    0
    0
    When you asked the original question you said it was for a draw extended crossbow...that's why I said those would be too short.
     
  12. cbsmith111

    cbsmith111 New Member

    117
    0
    0
    Oh, crap. I'm talking to two different people.
     
  13. tokSick

    tokSick Senior Member

    3,951
    1
    0
    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>cbsmith111 wrote:</b></span></td></tr>
    <tr><td class="quote">Oh, crap. I'm talking to two different people.</td></tr>
    </table>
    <span class="postbody"><br><img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"><img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"><img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"><img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"></span>