SINZA - Exotic Automatic -Exotic Weapon Design & Construction

Discussion & Design of Mechanics for Automatic Bladed Weapons & Exotic Gear
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» Age and Location
Ze Trebuchet Icon_minitimeby David8 June 10th 2018, 12:07 pm

» Don't try this at home!
Ze Trebuchet Icon_minitimeby Genklen April 15th 2018, 5:53 pm

» Power of sling
Ze Trebuchet Icon_minitimeby Genklen October 5th 2017, 6:35 pm

» Smash with a Phantom skull ring
Ze Trebuchet Icon_minitimeby Genklen April 29th 2017, 2:27 pm

» Knife Atlatl
Ze Trebuchet Icon_minitimeby Genklen March 14th 2017, 1:30 pm

» Machine gun knife sheath
Ze Trebuchet Icon_minitimeby Genklen February 4th 2017, 8:01 pm

» Paper truncheon
Ze Trebuchet Icon_minitimeby Genklen December 6th 2016, 4:00 pm

» Morningstar against clown
Ze Trebuchet Icon_minitimeby Genklen December 6th 2016, 3:33 pm

» Nailing playing card, and blindfolder throwing knife.
Ze Trebuchet Icon_minitimeby Genklen April 6th 2016, 5:01 pm

» Nailed (thrown)milk carton to the "wall"
Ze Trebuchet Icon_minitimeby Genklen March 11th 2016, 8:03 pm

» Rubber Knuckle-Duster
Ze Trebuchet Icon_minitimeby Genklen March 5th 2016, 5:22 pm

» Neck knife throwing
Ze Trebuchet Icon_minitimeby Genklen February 13th 2016, 6:20 pm

» Can the pliers be used as a knuckle duster?
Ze Trebuchet Icon_minitimeby Genklen January 29th 2016, 6:12 pm

» Offical Swedish army slingshot
Ze Trebuchet Icon_minitimeby Genklen December 23rd 2015, 12:54 pm

» My Collapsible Staff
Ze Trebuchet Icon_minitimeby serafim December 7th 2015, 4:31 pm

» Knife throwing with leg
Ze Trebuchet Icon_minitimeby Genklen November 16th 2015, 8:24 pm

» Belt buckle weapon
Ze Trebuchet Icon_minitimeby Genklen September 22nd 2015, 3:42 pm

» Toyota car jack; weapon?
Ze Trebuchet Icon_minitimeby Genklen July 10th 2015, 6:43 pm

» JIPPO-Catapult
Ze Trebuchet Icon_minitimeby Genklen May 14th 2015, 5:15 pm

» Medieval Soldier's armarments
Ze Trebuchet Icon_minitimeby Wolfie January 21st 2015, 10:54 pm

» Machinegun War Hammer
Ze Trebuchet Icon_minitimeby ChaosDragon August 24th 2014, 6:55 pm

» Can 8 euros be used as a weapon?
Ze Trebuchet Icon_minitimeby Genklen July 13th 2014, 7:24 pm

» Diagram of Atemi
Ze Trebuchet Icon_minitimeby Alvendam May 7th 2014, 10:07 am

» Knife Throwing Championships 2013!!
Ze Trebuchet Icon_minitimeby SINZA March 6th 2014, 9:22 am

» Hello all.
Ze Trebuchet Icon_minitimeby AkuroAdenn February 28th 2014, 4:47 pm

» Hi everyone.
Ze Trebuchet Icon_minitimeby ChaosDragon February 22nd 2014, 8:28 pm

» Maori Taiaha
Ze Trebuchet Icon_minitimeby Chasing-Butterflies December 31st 2013, 9:24 pm

» Hey all!
Ze Trebuchet Icon_minitimeby mozza December 18th 2013, 8:37 am

» Bonechakus + Other BONE WEAPONRY
Ze Trebuchet Icon_minitimeby mozza December 18th 2013, 8:01 am

» Alice Cooper & Throwing Knives
Ze Trebuchet Icon_minitimeby DogMachine December 17th 2013, 12:50 am

» Hello All!
Ze Trebuchet Icon_minitimeby LightShroudShadow November 10th 2013, 9:30 pm

» Intro and Sneek Peek at new build
Ze Trebuchet Icon_minitimeby DogMachine October 31st 2013, 6:30 am

» Practicalities of the AC Hidden Blade
Ze Trebuchet Icon_minitimeby ChaosDragon October 22nd 2013, 4:24 am

» Paintboy360olie's hidden blade
Ze Trebuchet Icon_minitimeby tokeupblowup October 3rd 2013, 10:30 am

Ze Trebuchet Icon_minitimeby ChaosDragon September 21st 2013, 6:17 am

» Quick Introduction
Ze Trebuchet Icon_minitimeby Abberance August 29th 2013, 9:39 pm

» Slinging "bola" chains
Ze Trebuchet Icon_minitimeby Genklen June 3rd 2013, 4:45 pm

» The Assassin Extension Knife
Ze Trebuchet Icon_minitimeby Mark Adams May 26th 2013, 6:37 am

» Forum Noobie
Ze Trebuchet Icon_minitimeby jerryk25 April 30th 2013, 1:46 pm

» 9" nails as ammo: New slingshot pumpgun!
Ze Trebuchet Icon_minitimeby shayl33ninjapro189 April 18th 2013, 7:12 am

» At last. A pumpgun slingshot tutorial.
Ze Trebuchet Icon_minitimeby JohnSully April 4th 2013, 4:20 am

» My Handcarved, Butterfly Warclubs {plural}
Ze Trebuchet Icon_minitimeby Chasing-Butterflies March 28th 2013, 2:35 am

» Shooting Chainsaws with the slingshot
Ze Trebuchet Icon_minitimeby Genklen February 19th 2013, 1:23 pm

» Hello I Joined the Forum Today Jan. 11, 2013
Ze Trebuchet Icon_minitimeby john6553 February 1st 2013, 10:53 pm

» I'm new :o shocker!
Ze Trebuchet Icon_minitimeby NoaIsumi January 16th 2013, 1:46 am

» Greetings!
Ze Trebuchet Icon_minitimeby NegativePower December 31st 2012, 10:57 pm

» 2012 Knife-Throwing Competition
Ze Trebuchet Icon_minitimeby Genklen December 29th 2012, 6:02 pm

» How to win every knife fight you are in in 2 steps
Ze Trebuchet Icon_minitimeby Wolfie December 27th 2012, 2:32 am

» My Taiaha in progress
Ze Trebuchet Icon_minitimeby RedneckNinja December 13th 2012, 10:04 pm

» Greetings
Ze Trebuchet Icon_minitimeby Chasing-Butterflies December 13th 2012, 12:47 pm


 Ze Trebuchet

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Number of posts : 14
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Join Date : 2011-04-06
Location : Texas

Ze Trebuchet Empty
PostSubject: Ze Trebuchet   Ze Trebuchet Icon_minitimeMay 15th 2011, 6:04 pm

Hey people! A while ago, i made a Trebuchet with a whole lot of information to back it up scientifically speaking, sadly, I lost said Info, but I still have the Awesomeness, I will try and explain each image.

Ze Trebuchet Dsc02299f
well, this is a full view not much explaining to do here

Ze Trebuchet Dsc02300b
This here is a leather pouch to hold a projectile (I use common marbles, and they work GREAT)

The ideal counterweight-projectile weight ratio is 133:1 that is, if you have a marble weighing 1 gram, your ideal counterweight should weigh 133 grams.
I know there is a definite formula to take full advantage of the sling, but I never did look into that, I just made it by trial and error.

Ze Trebuchet Dsc02300b
Ze Trebuchet Dsc02302q
This here is VERY important, this little bent wire holds the sling up to the point were it reaches the best angle to shoot farther, by bending it, you can change the distance it shoots the marble. If you shoot it as far as it will go, you will loose a bit of power. But if you shoot it about 75% max distance you get AMAZING power (I made a hole in a cardboard box about 4 meters away)

Ze Trebuchet Dsc02303s
Ze Trebuchet Dsc02304v
This is what I used as a counterweight, it is a part of a veeery old air pressure release valve. It weight about 600 grams give or take 50.

Ze Trebuchet Dsc02305zj
Very simple trigger design, its just two bent wires forming a loop with a screwdriver as a fastener (don't use a screwdriver, I lost my little wire that I made for it)

Ze Trebuchet Dsc02306re
this piece is to demonstrate that it could be cocked by human power. The method is somehow like this starting from an un-cocked position like in the first image: pull the long arm wit a rope about half way, place the end of the sling with the little ring in the bent wire at the top of the arm, connect the two triggers wind it up, load projectile, shoot.

Ze Trebuchet Dsc02306re
Ze Trebuchet Dsc02308ia
close up of the sling trigger.

Ze Trebuchet Dsc02309fy
overall view.

The tree holes in the arm are to change the length ratio (3:1, 33:7, 7:1)
The size of the supporting things at the side don't matter (just make it tall enough so that the counterweight has enough room to swing), the only measurement you need is the size of the long arm with the correct ratio, in my tests ratio 3:1 proved to be the best. The wheels may seem like a cosmetic feature, but the actually help the trebuchet throw the projectile farther, so if your building one, try adding wheels.

I will gladly answer any questions you have.

Don't ask me for videos though, I have a very bad internet connection (satelite) if I even try to upload a video, the connection will be terminated for a whole day ¬¬
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Death Dealer
Death Dealer

Number of posts : 452
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Join Date : 2010-12-15
Location : Netherlands

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PostSubject: Re: Ze Trebuchet   Ze Trebuchet Icon_minitimeMay 15th 2011, 7:33 pm

Looks nice! It looks like it could use some more finishing up, For instance, when you look at the wheels, and how they are secured. It's just folded over. It does the trick, but if you want to make it even better looking, I'd go for that. Maybe you could paint the wood, as well?

Too bad you can't do a video though, I would have loved to see that thing in action. But nice build anyway!

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Number of posts : 14
Reputation : 0
Join Date : 2011-04-06
Location : Texas

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PostSubject: Re: Ze Trebuchet   Ze Trebuchet Icon_minitimeMay 15th 2011, 7:46 pm

yes, I agree it could be a bit more refined, it came out that way because I rushed the process (took me about a day and a half)

But, the wheels were made like that purposely, its the simplest way I could come up with at the time, and still give it the realistic look, you know?

what I would change is the long arm, make it round, for instance. The string look very cheap too, but they hold, and the winding mechanism, the whole thing is very weak, so change all that.

I won\'t re make it because I am quite satisfied with this build, but later on, maybe next week, I will post up my other siege weapon, which may seem more boring, but is in fact WAY cooler, think 'TORSION' Wink
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Weapons Master
Weapons Master

Number of posts : 1371
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Join Date : 2010-01-09
Location : United States

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PostSubject: Re: Ze Trebuchet   Ze Trebuchet Icon_minitimeMay 15th 2011, 8:12 pm

Oh that's cool. I just got into wanting to build a ballista, though I don't have any hardwood.
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Number of posts : 14
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Join Date : 2011-04-06
Location : Texas

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PostSubject: Re: Ze Trebuchet   Ze Trebuchet Icon_minitimeMay 15th 2011, 8:24 pm

I'm actually building one, and I am using hardwood (mezquite) but it feels as though you don't need hardwood, really, try building it with softwood, just make sure the gap between the torsions is relatively short.
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Weapons Master
Weapons Master

Number of posts : 223
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Join Date : 2009-08-15
Location : New York

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PostSubject: Re: Ze Trebuchet   Ze Trebuchet Icon_minitimeMay 16th 2011, 3:18 pm

I made one of those... 1.5ft tall out of red oak with chain as a counterweight.
Ze Trebuchet Trebuc10
It's been sitting in my basement for a long time...

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