Making an ergonomic handle

Discussion in 'General Slingshot Discussions' started by randomNstupid, Nov 14, 2012.

  1. randomNstupid

    randomNstupid New Member

    10
    0
    0
    <div>(sorry if I had typos, but English isn't my mother language)<br><br>Hello everyone, <br><br>I have an old natural fork (i think it was my second ever made, it should be around 15 years old) made out of a Guava tree. More than say that the slingshot doesn't feet in my hand the same way it used to when I was 10, so i was thinking of castmolding a new handle and just attach it to the slingshot. <br><br>This is what I was planing to:<br><br>Step one: <strong>Make a impression of my hand at shooting position</strong><br>Grab a 3/4 tube or piece of wood and cover it with a 1/2 thick layer of Plasticine. Grab the Plasticine handle and pull back the tube just a little to simulate my hand's shape under shooting stress. Important to deform the Plasticine with the shape of my grabbing fist.<br><br>Step two: <strong>Female mold of my graving fist</strong><br>Use plaster to make a female mold of the Plasticine, once the plaster is cured pull the tube and try to remove the Plasticine (still not sure how, maybe dissolve with Kerosene? or just burn in the oven).<br><br>Step three: <strong>Placing my old fork and making the handle</strong><br><u>Be careful to place the slingshot in alignment with the graving position</u> (other way you will really screw up as the slingshot will give you fork hits every time), and insert the handle in the whole left by the tube. Then pour polyester resin on the slingshot till the handle's mold is filled.<br><br>Step four: <strong>Sandpaper and remove sharp edges</strong><br>The top and bottom of the handle are going to be ugly flat surfaces, so just go on and try to curve them up.<br><br><strong>Questions & discussion</strong><br>-So that was more or less my plan, my question is: has anyone tried something similar before?? I know placing rubber could make a handle feel more comfortable, but having a flexible cushioning material will take away some of the shooting power (part of your pulling force goes away in handle's deformation, so have a solid material is the right way to go).<br>-I saw in a video that in order to get the maximum power out of a slingshot the handle should be wide enough that your fingers don't touch your palm, is there any link or reference to this claim??? has anyone experience with this subject?<br><br>Thanks,<br>David</div><div class="clear"></div><div class="signature_div">
    <br>Hablo muy bien español, also I speak english, aber ich speche nur ein wenig Deutsch...<br>In my country the slingshots are called "Chinas" <img src="http://illiweb.com/fa/i/smiles/icon_tongue.png" alt="tongue" longdesc="24">
    </div>
     
  2. onnod

    onnod Im from Holland, isnt that weird?

    6,001
    18
    38
    It sounds really interesting, i think it could work
     

  3. zwillie

    zwillie New Member

    865
    1
    0
    hi,<br>it is much easier to use Fimo <a href="http://www.fimo.de/" target="_blank" rel="nofollow">http://www.fimo.de/</a><br><br>This is available in hard and soft and hardens on air or by heating.<br><br>Here an example of making a slingshot with metal frame and fimo.<br><a href="http://melchiormenzel.de/making_slingshot_fimo.html" target="_blank" rel="nofollow">http://melchiormenzel.de/making_slingshot_fimo.html</a>
     
  4. Bert the Welder

    Bert the Welder New Member

    2,201
    0
    0
    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>zwillie wrote:</b></span></td></tr>
    <tr><td class="quote">hi,<br>it is much easier to use Fimo <a href="http://www.fimo.de/" target="_blank" rel="nofollow">http://www.fimo.de/</a><br>This is available in hard and soft and hardens on air or by heating.<br>Here an example of making a slingshot with metal frame and fimo.<br><a href="http://melchiormenzel.de/making_slingshot_fimo.html" target="_blank" rel="nofollow">http://melchiormenzel.de/making_slingshot_fimo.html</a>
    </td></tr>
    </table>
    <span class="postbody"><br><br>Thanks Z! That just gave me another SS to add to the to-do list! <br>Anyone have an opinion on weather it would be worth building a batch of the frames for selling? I could build these easily and would probably be reasonably priced. Folks could build a personal SS or build them to sell. What do you guys think?</span>
     
  5. randomNstupid

    randomNstupid New Member

    10
    0
    0
    <div>This Fimo looks like the real thing, and way easier than making a female mold!!<br><br>Only question i have is if it end ups been too brittle... polyester have the advantage that is transparent... but honestly I don't think is worth all the trouble just to see the wood handle floating in the center...<br><br>I wonder why isn't this a more popular option between us the slingshot makers? It seems nothing could beat the ergonomics of a mold of your own hand, right?</div><div class="clear"></div><div class="signature_div">
    <br>Hablo muy bien español, also I speak english, aber ich speche nur ein wenig Deutsch...<br>In my country the slingshots are called "Chinas" <img src="http://illiweb.com/fa/i/smiles/icon_tongue.png" alt="tongue" longdesc="24">
    </div>
     
  6. FIMO must be baked in an oven (I am not sure the temp) and this may scorch a wooden shooter, especially one that has a finish on it already, but I do not know for sure as I have never worked with FIMO clay before. That aside you are right, a custom grip for your hand is awesome. But what if you want to let one of your friends try it out?
     
  7. slingpit

    slingpit Slingshot addicted

    1,606
    1
    0
    I made all my ss with dimensions for my hand.<br>Last week i gave one to a good employee and he is very contently with the handle.<br>One mm more or less here or there isn´t important.<br>It´s only important for chinese people. They have smaller hands. I know that from my bought chinese ss from Amazon.<br>But the idea from randomNstupid is interesting.
     
  8. <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>slingpit wrote:</b></span></td></tr>
    <tr><td class="quote">
    <br>It´s only important for chinese people. They have smaller hands.</td></tr>
    </table>
    <span class="postbody"><br><br>That's the problem I have with normal sized slingshots, my hands are 5.5 inches across the back of the knuckles with my fingers closed. (I'm only 5'10" but have long arms and big hands, kinda like a gorilla)</span>
     
  9. zwillie

    zwillie New Member

    865
    1
    0
    Hi,<br>fimo is very popular in Germany in our kindergardens they work wth this stuff.<br>Not every fimo need to be baked they also sell airdrying fimo.<br><br>Oh... here is the english webside <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1"><a href="http://www.fimo.com/" target="_blank" rel="nofollow">http://www.fimo.com/</a><br><br>Zwillie
     
  10. tokSick

    tokSick Senior Member

    3,951
    1
    0
    Watch <a href="http://www.youtube.com/watch?v=_zeQO7ObhoQ" class="postlink" target="_blank" rel="nofollow">THIS</a>, at 3:56. Joerg shows how to make a fimo handle.
     
  11. Bert the Welder

    Bert the Welder New Member

    2,201
    0
    0
    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>tokSick wrote:</b></span></td></tr>
    <tr><td class="quote">Watch <a href="http://www.youtube.com/watch?v=_zeQO7ObhoQ" class="postlink" target="_blank" rel="nofollow">THIS</a>, at 3:56. Joerg shows how to make a fimo handle.</td></tr>
    </table>
    <span class="postbody"><br><br>Well that seems to disprove my worry of temperature differential affecting the bond when baked. Glad to be wrong!!! You could use air dry stuff too. <br>Another option could be to make the fimo grip then take a reenforced two piece silicone mold from that. Make lots of copies from different materials then. Cold case bronze would be cool!</span>
     
  12. onnod

    onnod Im from Holland, isnt that weird?

    6,001
    18
    38
    if think this sounds noobisch but, how do you want to cast bronze cold?, it has to be hot and liquid right?