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K'nex Fully Automatic Burst Rifle: The K-2 v.2

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An improvement on my second in a series of new and innovative concept guns, the K-2 v.2 is very much unlike any other K'nex gun out there.  I utilizes a new "two-stage" pump that only activates the rifle's hammer when it is being pushed, and deactivates when the user is resetting the pump. 

The new pump was originally designed to rotate a cog, however until recently, a cog  with the right diameter to fit in with the teeth of the pump had been eluding me, and so this rifle works with the pump in direct contact with the hammer.  I intend to continue work on a v.3 that will utilize a traditional pump as opposed to a handle pump, and my hopes are that in doing so I will be able to make the gun more compact and more efficient.

The difference between the v.1 and the v.2 is merely the hammer, but a large part of the gun had to be altered as well to accommodate the hammer.  The original hammer extended a mere 3cm from its axis of rotation, limiting the distance it had to accelerate.  This hammer also had the design flaw of being at an angle, directing a lot of its force down rather than straight into the projectile.  The new hammer extends 6cm from the axis of rotation, doubling the distance it has to accelerate, and also contacts the projectile straight-on, ensuring that all of its force is being transferred to the projectile.

So, back to English.  I've put a lot of effort into this project over the past week or so and I feel that this is a very high performance gun.  Although the mechanism has still not been used to its full potential, it is definitely a post-worthy gun and instructions are on their way.

*UPDATE*  Instructions for this gun can be found here: 
http://www.instructables.com/id/Knex-Slamfire-Burst-Rifle-The-K2-v2/-Kinetic 

Without any further ado, say hello to the K-2 v.2:
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H1T4TCH17 months ago
" The new hammer extends 6cm from the axis of rotation, doubling the distance it has to accelerate, "

Isn't it, in that case, quadrupling the distance it has to accelerate?
that is a awsome gun !
hi guys great gun looks awesome can you please look at my first one too though i would really appreaciate
hay if you guys like guns look at mine
Only if it was ''yours''. You posted The Dunkis' BAW, claimed it was yours, and didn't give any credtis.
It's an awesome gun. Nuff said.
Kinetic (author)  PotatoCoffee1 year ago
Thanks a ton man! I just hope someone might be able to improve upon the concept sometime.
Umm... Please don't look at me, I can't do it yet! =(
Kinetic (author)  PotatoCoffee1 year ago
Sure you can!
First I'll need to get some more peices!
what is the name of the song in the beging
Kinetic (author)  knex freek 21 year ago
It's called Strange Clouds. And yeah I'll make sure to check out your stuff!

Btw thanks for the sub!
Kinetic (author) 2 years ago
*UPDATE* All pictures have been taken. Instructions will be posted in segments throughout this weekend until the whole gun is posted.
DJ Radio2 years ago
I've said this before but I think this is an amazing build. Definitely the best gun of 2012 in my opinion.
Kinetic (author)  DJ Radio2 years ago
Thanks a ton man. Instructions will be up sometime this week along with photos of a cool mechanism I've been experimenting with. As good as this gun is, I really hope the community can improve upon it because I think it even more potential.
Kinetic (author)  Kinetic2 years ago
*it has even more potential.
GASSYPOOTS2 years ago
by deffinition a automatic is a semiauto gun that shoots pistol rounds XD
mahmel2 years ago
Sorry for being trolly but I can not say this is full automatic
Kinetic (author)  mahmel2 years ago
Hmmm...I was waiting for someone to say that...would you consider a m4's 3 round burst as automatic fire?
mahmel Kinetic2 years ago
I suppose. I see it actually as a semi automatic rifle with 4 triggers:) If I counted right..
Kinetic (author)  mahmel2 years ago
But you only have to pump it once...not four times. Its basically just one really long trigger pull.
mahmel Kinetic2 years ago
Ok, it's not full automatic to me; still an awesome gun!
well full auto is hold a trigger down and it shoots but this is a working knock trigger because you have to pump it inorder to shoot it so its sadly not a full auto knex weapon sorry
yeah, that's kinda what I mentioned
just wanted to back u up
k
If it matters, you're right for the most part.
k
mulletman62 years ago
Awesome gun dude. You really are one of the best "knexers" on here :)
I think that the word you're looking for is "k'nexpert".
Kinetic (author)  mulletman62 years ago
xD Hows the K-1 coming? Do you still need better pics of the "power pack"? I read what you said about the band stretching too much before it is wound, and that's because I used a rubber band that is twice as long as a standard one, so if you can find those use them or try tying two together.
Got it finished, so don't need anymore pictures - thank you anyway :). I will try a different sized rubber band on it. Will keep working on it and see what i can do :)
Kinetic (author)  mulletman62 years ago
Great job man! Hope you can do something amazing with it.
pokerface12 years ago
Again super great weapon
I rated 5* :)

You always have great idea's your guns are always great, I have builded all your weapon u posted so far and i like all of them

Thanks for explaining vid, it realy helped me to understand.

Keep on going with this great work :)
H1T4TCH12 years ago
Awesome man, Awesome.
When are you going to post?
tytiger332 years ago
When you going to post this?
Dirtyboyy2 years ago
Dude keep going! It's great! If you could get the same range as the original TR18.. your gun will be awesome! Try to make the gun bigger! I mean a top layer or whatever.. make a beast! Or make it as small as possible with the same range.. You are on the good way! Keep going!
This is no joke the coolest gun I've seen on instructbales. I would pay for instructions
How's the 18 shot turret coming along with the gun?
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