The K'nexecutioner 1.02

At long last! I show to the world how to create your own copy of my beast, featured on YouTube.

Version History:
0.1a - Alpha tech release - Inspired by the Oodalumps chain-gun, the concept of a heavier ammo that used two gear-belts developed. This model, rather bulky, performed the job of firing a single belt of the new ammo and convinced Danny "Stealth Raptor" Ogran to lend parts for a bigger, better model.
1.00 - The K'nexecutioner - Construction went smoothly and without any major problems. Very shortly after its completion and first test-firings, videos were taken. A complete success, it was publicized on YouTube with the video above and various forums to a crowd eager for building instructions.
1.01 - Extensive modifications to the structure were made to allow for a better wheelstand and a foldable third leg. This allows the weapon to be reloaded by a single person.
1.02 - A modification to the gear ratio showed that high torque was not necessary, and the gun is capable of firing faster. This version was chosen to be in-depthly featured on instructables.com.
2.00 - Cyclone - <Declassified>

I'll tell you this now: This model is very difficult and time-consuming to build. Only the serious K'nex gunners need attempt this.

The first ever machine gun built to fire rods of the yellow size! And it capably carries them a good (not great) distance.

The video shows it at an old, very powerful gear ratio. I have since simplified it from the motor having a small->large gear advantage turning the barrels into the motor directly turning the barrels.
40 shots over 10 seconds = 4 per second = 240rpm.
This has been boosted to take a little under 5 seconds, so 500rpm will be my official claim.

Since not everyone uses the same K'nex motors as myself, yours may have to vary and you'll need to be creative. Use this instructible as a reference, rather than follow it completely.

Step 1 Let's get the most boring part done first.

Here, you will find out whether or not you really have the pieces necessary to build the K'nexecutioner.

You are building 42 single-shot chain link units.

21 are for one side, and 21 are mirror-flipped for the other side.

You can build yours however you want, as long as the red connectors & chain links are exactly where I have them.

I used 8 dark grey connectors per barrel, 8*42=336! Whew.
84 black chain pieces.
84 light-grey connectors.
84 red connectors.
126 silver-grey spacers.

That's just to list a few of what you'll need if you do it exactly my way.

I also reccomend these exact rubber bands. You can get them in the office supplies section of Wal*Mart.

Comments

[king greeon]

you are waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(you get the idea)aaaaaaaaaaay to old to be playing with knex guns

[Perfect Duck]

I'm 22. O.o I don't really play with them. I get more enjoyment out of thinking them up and then designing them. Whenever I get an idea in my head, I have to see if it would work.

[mettaurlover]

makes sense. i only make them for the challenge they bring; K'nex just get boring if what you're building isn't complicated when you think at hyperspeed like me.

[Fred the evil puppet]

Too true.

[KneXtreme]

+1

[cool knex13]

Great! :)

[Millawi Legend]

I've always longed to make this gun. Never had the 2 motors.

[weadeadr]

plZ make piece count

[Blue Mullet]

Cool!

[flyerminer]

OMG! i gotta make this. its the most wonderful thing in the universe....because this is so special im getting like 2 more boxes of knex.=)

[Perfect Duck]

This is terrible, build the Cyclone.

[flyerminer]

out of the 5 boxes i already have. =)

[Cagedconner]

WOW! this gun looks AWESOME!!!!!!! i dont have anywhere near enough pieces though

[ultimatesx9]

same here, how many boxes/sets did you use to make this?

[king kolton9]

whic pieces did he use for this

[poilsoup2]

what if we dont have 378 dark grey pieces?

[murraylp2]

does anyone know a parts list for this thing

[prodo123]

yo Perfect Duck can i modify your k'nexecutioners to not run on chains? instead im plannin on a moving box :D for those without chains like me

[BuilderLoon]

Buy some on EBAY! I got 12ft of chain for £13.75 RESULT!

[Perfect Duck]

The only thing that the K'nexecutioner is good for, is utilizing chain belts. I'd build something entirely different if it involved what sounds to me like a solid clip of rounds.

[bighead5454]

you said the knexecutionor uses chains but what if someone shot one of those chains what would happen cause i wwould rather build a gun with a a mag than have a gun built that uses chains that if shot can disable the firing system

[prodo123]

im just replacin rails with yellow connectors and put a green connector on top of gun for trigger so u just pull it to fire

[Mace!]

Hey, where is the best place to get those motors? I got my first one from ebay but now I need a second one to build this gun. And don't just say get them from ebay because I can't ever find one on there anymore.

[Mace!]

And judging from the cyber ultra motor I have, it doesn't seem powerful enough to power this thing, are you sure it will work?

[Perfect Duck]

The belts actually resist very little when spinning. Also, forget this garbage and build the http://www.instructables.com/id/The-K_nexecutioner-2.11---%22Cyclone%22/ instead.

[Mace!]

I don't know, I kinda wantedto build this one more based on the fact that it has more shots before you have to reload......... But do you think the Cyclone is better than the original K'nexecutioner in a k'nex war?

[Perfect Duck]

Trust me, I built them both ;) The Cyclone shoots a farther distance because each barrel is much more powerful, can use -any- type of rod for its ammo, and can be operated with one hand (need to open a door?). And it shoots flighted rods. I managed to get 60-70 feet out of it using flighted red rods. No other MG's gonna do that. It was a refinement of technology and principle that I learned through building the first K'nexecutioner. The K'nexecutioner was huge and had weak barrels (Although at the time, the only other full auto cartridge belt system to compare with was oodalumps's machine gun that had cartridges that sat on blue rods - K'nexecutioner ammo being red rod sized was a marked improvement), wheras the Cyclone uses less chassis to house even stronger barrels of the grey rod size and I actually had to incorporate parts that prevented the damage of pieces in every barrel. I'm not going to stop you from building what you want, and yes there is perfectly logical reason to want them big and massive - your opponents may let their weapons down and run XD but... For actual performance the Cyclone is ideal.

[TwistedParadox]

I'd still build it for the sheer coolness of it.

[DELETED_DELETED_DarthVader]

(removed by author or community request)

[Mace!]

Give examples.

[Mace!]

Cool, thanks. I ended up building them both and the Cyclone was more powerful, went farther, but for some reason I couldn't get the bullet holer to work. It was like it couldn't be pressed down all the way to hold the bullets it and when you pointed it down, all the bullets fell out. Do you know what the problem is?

[Mace!]

Oh, and what are flighted red rods and how do you make them? That would be awesome if I could get it to shoot 60-70 feet like you said.

[Perfect Duck]

They are rods with fins glued or taped onto them for aerial stabilizers (dart fins). The wings need to be behind the center of gravity, the further in the back the better (and thankfully the cyclone only needs to hold just the last inch or so - if you take the last two grey connectors on the barrels and place them turned and out of the way). I found that, to get maximum performance, I cut the wings out of firm clear plastic (cut out of card protectors) and superglue them to the rod with modeling cement. The wings break easily, but the rods fly great distance and strike targets with a very solid, head-on sound. As for the universal ammo holders - they aren't supposed to hold onto the ammo strong at all. They have to be placed so that the white rod's length tucks into the 'dip' at the end tip of the ammo.

[DELETED_DELETED_DarthVader]

(removed by author or community request)

[Perfect Duck]

Not poker cards... Card protectors, which are thick-plastic sleeves that fit around cards to protect them from scratches - I used that material because it was both thin and stiff. It flies perfectly -and very far- but immediately shatters when it hits the ground. They really are a lot of work and I don't reccomend actually relying on them. I know what you mean. I did it more for myself because I was curious. I could have done a whole instructable on how to make them but agree with you that once you start going down the slippery slope of modifications, performance boasts do get rediculous. I'll still say that the Cyclone's the only auto that shoots sniper rounds, though, making it one of the top long-range siege weapons in K'nex arsenal if they're allowed.

[king kolton9]

why do everbody with DELETED_DELETED at the front of their names have (removed by author or community request) on all of their comments, not just that but they ''descriminate'' people, and when you click on their account this shows up (note this is his not everybodys when you click on his his name will show up not on the other DELETED_DELETEDs)
ERROR 400: no member: DELETED_DELETED_DarthVader
ERROR 400: no member: DELETED_DELETED_DarthVader

[Perfect Duck]

Also, I'm really getting sick of you trying to descriminate me due to my age and trying to make it seem like I don't belong. K'nex are for anybody and everybody who wants to be interested in it.

[Mace!]

Thanks, I now understand what the flighted sniper rounds are. And I'm glad people like you make stuff like this cuz usually the older people make the best stuff. Ex: you and killerk

[king kolton9]

i agree older people do make the best stuff
Levels of experience:
Kids Ages 4-8 little to none and no creativity (well for their age they have some... dont forget their little)
Kids Ages 9-12 a bit more (creativity wise as you go on there's improvement)
Teens Ages 13-15 alot more than that (Createtivness has a lot more improvement)
Teens Ages 16-17 amazing experience (and creativity too)
Adults Ages 18- Master experience (and ultimate creativity too)

[Mace!]

Yeah, I think I'd go by that too.