Sunday, September 11, 2011

Assault slingshot - it works!

Got it to work, but not in time for the whole how-to. Shot a "teaser" today, will be up on youtube later. The How-To will follow next Sunday.

In the teaser, I used "light" triple TB gold bands (the heaviest I can pull on a conventional slingshot), but in the attached photos I doubled the bands... six layers of TB Gold per side.

I estimate the power with these bands to be around 80 Joules. The second pic shows it in comparison with the "old" sling-x-bow design, far weaker, but at more than twice as long. The better is the natural enemy of the good.

This will need


a) More finishing work (sanding)
b) a cool paint job
c) scopes.

Should all be done til next week!

One of my finest weapons.

86 comments:

  1. Looks great! can you tell us what the length of the bands are?

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  2. Can't wait to make one! Six bands sounds pretty powerful!

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  3. Do you happen to know the draw weight with 6 bands?

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  4. Joerg, you are the genius of 'simple and effective'. That is a superb design and execution. Looks cool, too! Many people round the world will be copying this. Zombies, beware! Well done!

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  5. Very nice looking, now time for the vampire stake lol. Can't wait to see it in action and completely done.

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  6. Are you still going to make that angry birds video?, also, I like how you made this one, with the rubber going around those things for max stretch

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  7. Hallo Jörg,
    sieht verdammt professionell aus. Hört sich nach viel Power an. Ich schau mir jetzt mal das video an.
    Viele Grüße aus dem Hunsrück

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  8. is slingshot tutorials going to be a regular thing? i sure hope so.

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  9. cant wait for the tutorial, already dug some plywood out of the garage :)

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  10. Nice one. Looks very sleek and well designed.
    I have one question, though:
    Why don't you move the anchor points of the bands all the way to the back of the weapon to further increase the effective draw length?

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  11. My boyfriend would cry like a schoolgirl if he owned something half as badass as this.

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  12. 80lbs draw is pretty great for the length it is. So is this the first bullpup slingshot? I don't think I have ever seen one elsewhere.

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  13. Really great, i like the idea with the ballbearings, to increas the draw.

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  14. Jörg, you are the coolest guy on youtube and i am now following your blog!

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  15. I really like Bullpups and I think this will be your finest work so far. Looking forward to seeing the finished product. Have you ever done a slingshot weapon using crossbow pistol bolts. I've only seen Cambow Sling.
    Cheers
    Ian

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  16. This is a very nice design ... you have done an excellent job. It is similar in concept to the Com Bow Sling by Bob Blair ... his was not a crossbow design, however. My only suggestion would be for large washers or something similar at the top of the rollers to act as a keeper to keep the bands from jumping off the rollers.

    Cheers ..... Charles

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    Replies
    1. Thanks to both you and Gorg for remembering my Com Bow Sling and making mention of it. Robert Blair www.combowslingguy.com

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  17. Watching the video on how its fired, makes me think the cannon could use the roller design and have even greater power. Still a very amazing design!

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  18. it looks nearly like real assault riffle
    you should open your own slingshot factory and make kompetition to dankung

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  19. Man, it really does look like a rifle. That's some good wood working. All you need now is a bayonet at the end of the rifle! Lol you probably could add it to the stir-up, and stick in into the ground when loading.

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  20. Very cool you should have a competition for people to compete with designs

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  21. Looks good how many sheets of plywood is that?

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  22. The future of non-lethal combat.

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  23. I challenge you to making a sniper rifle, distance and accuracy

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  24. awesome! can't wait to see it shoot

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  25. looks great! I can't wait for you to make exploding rounds for it!

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  26. Living in Mexico, even a cheap catapult is expensive, so I've been making my own ( some from your examples ! ) This I can't pass up. Already have the wood, just need the plans, especially for the trigger. Go Joerge ! Non LKethal My Arse ! 80 J = 60 Ft-Lbs more powerful than anything allowed in the UK ( 14 Ft-Lbs )

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  27. UK only allows 14 ft lbs!? that's like nothing!

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  28. Great stuff!!! Was wondering is there a way to make the band s make less noise without losing power?

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  30. I can already see the potential in this slingshot. This is going to be interesting.Can't wait!

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  31. I like this design--I'd like to make something similar. Could you post some pictures of the trigger mechanism?

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  32. Can't wait for a new slingshot in AUG form!

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  33. No luck winning one, guess I'm going to just have to build one.

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  34. Pretty cool man! i like the design!

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  35. sigh... damn slow connection... once the video loads i shall see the epicness of the the slingshot :D

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  36. I want to make one with a 2x4 brace in the front so I can really put some torque on those rollers with some super heavy bands.

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  37. Very cool! It definitely needs a cool paint job to pull it all together. Can't wait to see how it's made!

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  38. What kind of scope are you thinking of putting on it? I'm thinking a simple red dot would work great. But you might already have plans for that. Great work! Looks like a powerful little sub gun. Looking forward to the paint job.

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  39. I'd love to be able to make one of those!

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  40. Looks super cool! I want one of those! Also where do you buy your slingshot ammo?

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  41. @ Rico Suave
    I have heard good things about http://www.vxb.com they seem to have good pricing also. 100 1/2" inch Chrome Steel balls for $12(usd)

    Another way you could do it is buy a round ball bullet mould they are around $20+(usd) and you can collect wheel weights or even buy lead ingots. All this stuff can be found on eBay.

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  42. complete awesomeness.. yet another masterpiece is born

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  43. I love your videos, you are awesome. Can't wait to see the angry birds video!! Also am going to have to find some free time to make the bullpup slingshot, or maybe I will win one??? :0

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  44. do squirrels play modern warfare or halo...

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  45. Great piece of work!
    Love the design and the power.

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  46. looks amazing and terrifying at the same time

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  47. oh, damn I have got to build me one of those, that is sleek....

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  48. Love you work. This is one of your best designs yet. I am looking forward to seeing the designs and the how to video so I can make one myself. Keep up the good work

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  49. Some 3-color swirl paint would be great looking on this tactic little hole-maker :D, or hand painted camo....
    Looking forward for blueprints.
    Cheers mate!

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  50. wow! what a fantastic design! was it difficult to make?

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  51. sweet! is it possible to move the rollers back more,so you can add more band length?

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  52. Great piece of work!
    Can´t wait for the how to.

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  53. This slingshot is awesome, I have to build one myself.
    At first I thought that the rollers were made with ball bearings, but now it seems to me that you just put wooden tubes over screws and secured them with nuts. Is that right? Ball bearings would be good, but they are difficult to attach if you don't have a lathe to make certain parts.

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  54. Very cool! What diameter bolts are those in the front? I'd like to get everything i need to build one next week.

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  55. These aren't ball bearings, not needed. I did smear on a bit grease, though.

    The rollers are not under pressure after the release, only while you draw out. Even then the friction of the rubber on the wood guarantees a smooth operation.

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  56. Have you tested it with the chronograph yet?

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  57. Saw your video on Gizmodo! Keep up the good work, dude!

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  58. Is there a limit to the amount of energy that you can get from Theraband gold? At some point you would think that adding layers wouldn't give you much more return.

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  59. I believe your right, the limit is the speed at some point adding layers will have less of an effect, but you need those extra layers for heavier projectiles.

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  60. i think you just used a round piece of wood (like a broom handle) with a center hole and a screw.
    if the wood is rounded enough i think the theraband won´t even take damage.
    i like those roller designs.

    took a walk in the woods today and collected 2 natural forks again. last time i took hazelnut, this time i took beechwood.
    peeled it and now i´m microwaving it....dman jörg...i´m not sure...but...i only wanted to do ONE...well there is theraband left...and it seems that builing and collecting slingshots is highly addictive :( shame on you jörg :D

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  61. The rollers are pure genius. Where did you get the idea from?

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  62. I just made a handy little slingshot from an old hand gripper, it fits in your pocket and its a perfect v with a ring for your pinky. I ran out of leather and used 8 layers of duct tape for the pouch, so far its holding!

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  63. that is amazing i am soooo going to make one soon

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  64. y leather is also my main-problem.
    very often it rips apart where i punched the holes in :(
    really trying to find some decend leather some time.

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  65. Nice weapon. Waiting for some awesome shooting vids.

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  66. This is THE ONE !!! This isnt a slingshot ,this is a KILLING WEAPON !!! Absolutly LOVE it !!!!!!

    Seen the vid already 40 times , just cant wait to get to my modest workshop ,got to have this one !!!!

    Thanks.

    All the best.

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  67. Interesting stuff. Please keep making videos friend!

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  68. This is one of the best "crossbows" you have made. I like not only the fact that it is small and compact, but that the rubber is always in a stable position so there is one less step in reloading.

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  69. Great idea!
    To the workshop!!!!!!!

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