Bowfishing crossbow slingshot

Discussion in 'Slingshot Crossbows' started by dlnd5d, Feb 4, 2014.

  1. dlnd5d

    dlnd5d New Member

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    Hi all,

    I'm new to this forum but have been tinkering with slingshots for bowfishing since Dave Canterbury made the video of his survival slingbow. I love doing these designs as I am studying to be a Mechanical Engineer.

    My latest is a cross bow that uses old roller blade wheels with a groove cut in a lathe out of a Hyperdog tennis ball launcher frame guided with a green laser. I always use theraband silver anymore and this dude packs a wallop. With the bowfishing arrow, it goes through any gar I can shoot at. I don't have any bolts for it yet since they use half moon nocks, but I tested one anyway and it shot 100 yards before the bolt hit the ground. I tied on a stirrup for cocking since I used a caliper release instead of the conventional crossbow nock point. The reload time actually isn't bad since this isn't too heavy of a draw (80 lb?) but the pretensed bands makes it very efficient.

    Let me know what yall think, glad to find a forum with stuff I like
     

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  2. that really cool!
    i love the idea of using Rollerblade wheels for the rollers!
    also i like the trigger mechanism, is it an archery bow release?
     

  3. VWscooby

    VWscooby Senior Member

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    Great idea with the blade wheels. Decent bearings like that should cut down the friction right?
     
  4. dlnd5d

    dlnd5d New Member

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    I appreciate that for sure :) blade wheels have double bearings so with a spray of silicone they go for a solid minute after spinning. Yea, I wanted to do a custom trigger but I already had that release available so I figured out a way to mount it pretty easily
     
  5. rock slinger

    rock slinger I rarely shoot rocks!

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    Very creative. The carp shall be shot
     
  6. FilthyRusty

    FilthyRusty New Member

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    i want one LOL!!! what was the build time on this project?
     
  7. Bushmaster

    Bushmaster New Member

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    Sleek! Can you post a picture or diagram of the trigger? To me that is the toughest part to get right!
     
  8. PaulPawx3

    PaulPawx3 Member

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    Good luck with your engineering degree, looks like you have a great start. Looks like some out of the box thinking, the kind you always see on Jorg's videos. Simple, but very effective. Great job:)
     
  9. dlnd5d

    dlnd5d New Member

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    I came up with the concept and had the frame available so it was a week from start to finish with all the parts. A lot of bending and a lot of welding. But really fun to do.

    The trigger was off an old release. I drilled a hole and secured an eye bolt square with the front. The rest was just bolts and washers to secure it in place. I also took a dremel to the top to make a makeshift Weaver rail to mount my laser for bowfishing and red dot sight for rabbits and squirrels.
     
  10. dlnd5d

    dlnd5d New Member

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    This is the tension while it's cocked. With these arrows and judo points, I get it really close to where the cheap red dot sight put it. I haven't tried to group anything but was able to shoot a bird off a limb and launched it at least 100 yards on an arch. Taking the reel off makes it a pound lighter and easy to maneuver up
     

    Attached Files:

  11. kohlqez

    kohlqez Accident-Prone

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