Instructables

Knex Full Auto Gun Prototype(UPDATED 8/13)

I have finished a fully automatic K'nex gun today. It is a prototype and not the best, but it is a good start and i am hoping for it to become an excellent working gun with some modifications. It does have a few flaws in it's design but like i said it is a prototype. My main concern is the fire rate it is so fast the bullets shoot out like a shotgun instead of a true full auto gun. I am sure this can be fixed and i will do my best to get the final version of the gun up as soon as possible. Now to the pros and cons.

Pros
  • Full auto
  • Small/Compact
  • Not a terrible amount of pieces
  • 6 round magazine
Cons
  • Shoots like a shotgun
  • Prototype

******UPDATED V.2******
Ok i just finished v.2 and thanks to everyone for their ideas and support. In v.2 i have increased the magazine capacity to 15 from 6, even less pieces now, new handle and magazine design. I also learned if you wish to have more power and add more rubber bands you get the (shotgun) effect instead of the full auto.



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mrmuffin1 year ago
HEY GUYS I THINK IK HOW TO MAKE THIS HAVE A RESONABLE RATE OF FIRE!~!!!!!!!!!!!!!!!!!!!!! Btw its just an idea havent tried it Try putting like ok say if u put 10 bands on teh mag pusher the nu should put lie 8 on the red connector maybe that will help idk
PLZ PLZ POST
post please
if only we could slow this down a little bit...

i could try to make a friction mechanism, but it would corrupt pistol size.
Yea i i think this idea might have to be abandoned because of how it works, if you put a friction mech in this it would kill the range because you getting rid of the energy from the bullet so yea.

not a friction mech like that, but a very very VERY high speed version of the "mag single shot" idea that the ZKAR used.
muhu12 years ago
Tutorial plox ;D
Oblivitus2 years ago
Does this work the same way my S10 does? http://www.instructables.com/id/S10-Knex-Shotgun/
KnexFreak360 (author)  Oblivitus2 years ago
Aww man, i think its the same concept yes.
That's okay. Great minds think alike. This one has a better trigger than mine. Try making the mags removable. I came up with an internally fed mag that could be used with this. Here's a couple pictures;
PICT0010.JPGPICT0005.JPG
KnexFreak360 (author)  Oblivitus2 years ago
I made them removable!
Great.
Im ready to see the updated version =D
KnexFreak360 (author)  beanieostrich2 years ago
It's going up in like 20mins.
KnexFreak360 (author)  beanieostrich2 years ago
Soon....
Cool.
cool
apples!!!!!2 years ago
6 rounds for a full auto weapon is not a good thing :P However, it's an intriguing start nonetheless! Does this operate in a similar fashion to the pressure system used in some of the semi-autos floating around?
KnexFreak360 (author)  apples!!!!!2 years ago
I have updated it now its 15 rounds.
Well there you go. Any pics?
KnexFreak360 (author)  apples!!!!!2 years ago
Forget 15 i may have gone to far but 33 rounds.
Lol, well that's much more accurate to the clip size of most real automatic weapons.
KnexFreak360 (author)  apples!!!!!2 years ago
lol but the auctal size of the clip isnt.
Lol, I'm assuming its rather...large?
KnexFreak360 (author)  apples!!!!!2 years ago
Soon.
KnexFreak360 (author)  apples!!!!!2 years ago
Yep.
An Villain2 years ago
Seems an interesting prototype, It could use a standard-loading magazine instead of an in-line magazine though.
KnexFreak360 (author)  An Villain2 years ago
I changed that.
I see.
DJ Radio2 years ago
The main thing I see that needs improving is comfort. You need a better handle and a smoother trigger.
KnexFreak360 (author)  DJ Radio2 years ago
Ok thanks.
Hm, I like the idea! Keep it up!
you could try increasing the force on the mag ram and see if that increases the range. 4.5*
plz post vedio and also what is the range
Cant get a vid and the range is not good it is a prototype as mentioned.
ok, needs some work then
~KGB~2 years ago
This looks intresting. =D
KnexFreak360 (author)  ~KGB~2 years ago
Thanks!
np =D new ball machine soon.
KnexFreak360 (author)  ~KGB~2 years ago
Cant wait
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