Introduction: Knex Semi-automatic

Or bolt-action, pump-action, or whatever you want to call it. (it loads automatically)
Shoots yellow rods, max. capacity 20. Colors and rubber band tensions vary. Modify as nessesary.

*See below comments; I mistakenly re-posted this in 2009. Please refrain from freaking out.*

Step 1: Get Pieces

If you don't have over 200 pieces, you can't make this. These lists do not include the ammo (yellow rods).



*can be substituted for similar pieces

Step 2: Construct Barrel


Step 3: Construct Handle


Step 4: Make Trigger

This is actually a 2-part trigger, but the first part wa included in the barrel.

Step 5: Assemble Parts

Make sure the handle connects fully to the barrel.

Step 6: Make Firing Pin

The part in the last picture will go on later.

Step 7: Make Other Parts...


Step 8: Make Other Parts...


Step 9: Assemble More Parts...


Step 10: Make Automatic Feed

Make two of each of these pieces.

Step 11: Make Other Parts...

Make two of the first piece, and one of the second.

Step 12: Assemble More Parts...


Step 13: Attach String and Rubber Bands


Step 14: Attach Automatic Feed...

The rubber band should not be streatched to its fullest; if it is, connect two together instead.

Step 15: Prepare to Fire

Load ammo, pull back pin until it locks in place, and fire.
If it jams, pull back the pin until it locks. Check that the ammo is in place to be fired, and try again.
If the pin doesn't lock, adjust the rubber band shown in step 13, picture 7.


Note: the more ammo you put inside, the less well it works.

Comments

author
nathan's knex made it! (author)2011-08-21

i made this gun and it looked good but keeped jamming so i had 1 mag and it worked like a drem

author
joe ~~~~~~~ made it! (author)joe ~~~~~~~2013-05-31

dreAm

author
smidge147 made it! (author)2008-08-06

we have a thing called forums! GO ADVERTISE THERE! YOU NOOB!

author
The Jamalam made it! (author)The Jamalam2008-08-27

and i dont see any guns like mine on your homepage

author
bob the builder #1 made it! (author)bob the builder #12008-12-13

Just be Quiet pleeeeeeeeease!

author
The Jamalam made it! (author)The Jamalam2008-12-13

i didn't say anything, i typed it.

author
bounty1012 made it! (author)bounty10122009-01-05

OWNED!

author
The Jamalam made it! (author)The Jamalam2009-01-06

hehe rofl

author
zapple made it! (author)zapple2009-06-01

wow, no afence but dont you know its not nice to talk back to people. and plz just go advertise some were other then here. i thing your guns are greate and i biult all of them, but its just not nice. plz respect the author.

author
the_boss_builder made it! (author)the_boss_builder2012-03-18

y shudent people talk back bossy

author
bounty1012 made it! (author)bounty10122009-06-02

Please don't try to correct people when you obviously cannot spell. (Btw I spelled I kno rite wrong below to make it funny.)

author
The Jamalam made it! (author)The Jamalam2009-06-02

Pointless comment? lol this was january.

author
bounty1012 made it! (author)bounty10122009-06-02

I kno rite? and for some reason I got that message in my inbox.

author
bounty1012 made it! (author)bounty10122009-01-06

lol

author
bob the builder #1 made it! (author)bob the builder #12008-12-18

smart alack!

author
The Jamalam made it! (author)The Jamalam2008-12-19

haha

author
The Jamalam made it! (author)The Jamalam2010-04-16

Oh, the irony... 

author
The Jamalam made it! (author)The Jamalam2008-08-07

i am not a noob anymore, and i had been a member for 2 days when i posted that. And i have seen you advertising anyway, so stop talking in 3...2...1...

author
bob the builder #1 made it! (author)bob the builder #12008-12-18

No one ever talked (yes now I'm being a smart alack)

author
TwistedParadox made it! (author)TwistedParadox2009-03-01

whats an "alack"?

author
The Jamalam made it! (author)The Jamalam2009-03-26

you mean you are still here? sorta?

author
TwistedParadox made it! (author)TwistedParadox2009-03-01

Aha

author
bob the builder #1 made it! (author)bob the builder #12008-12-13

Dude Stop advertising your guns here, this is someone else's instructable!!!

author
(your name here) made it! (author)(your name here)2008-08-27

If you guys want people to take any of the knex posts seriously, I suggest you act a little more mature, or at least take it to your own instructable.

author
Puddock made it! (author)2011-12-06

I think you left but, awesome!

author
mberg made it! (author)2011-05-28

do u always have to pull it back

author
zmxninja made it! (author)2011-04-13

Someone please kill The Jamalam!!!

author
Football viking boy made it! (author)2011-03-31

My gun only shot like two feet, but it was still automatic which was cool.

author
knex twintoe made it! (author)2011-02-06

Nice gun.
Effective...

author
Agorion made it! (author)2010-09-10

can you guys look at this and tell me if I should make instructions?
https://www.instructables.com/id/Simple-And-Effective-Knex-Gun/


author
14r31337 made it! (author)2010-08-13

Are the spacers at the bottom rod neccessary? Or are they just there to keep the other two rods from getting too close to each other?

author
anres321 made it! (author)2010-07-05

hey I have made a fully automatic knex gun that works with a totaly diffirent system that is never used before on a fully automatic one. So would you plz tell me wath you think about it ?? here is the URL: https://www.instructables.com/id/Fully-Automatic-knex-Gun-it-really-works-/

author
mikstr2 made it! (author)2010-04-17

your camera has bad quality but in a good way that you can still see it ok... interesting

author
Miles Tails Prower made it! (author)2009-03-04

NOT SEMI AUTO!!!!

author
Millawi Legend made it! (author)Millawi Legend2009-03-14

dont be mad... he is the god of knex guns. he invented them. i think.

author
altrobot made it! (author)altrobot2009-05-27

WTF? KILLERK posted the first knex gun, dont argue when you dont know

author
The Jamalam made it! (author)The Jamalam2010-04-16

LMFAO!

author
NYPA made it! (author)NYPA2009-10-30

No he did not. He posted the first GOOD first gun.

author
Miles Tails Prower made it! (author)Miles Tails Prower2009-05-28

No it's not!!!! But killerk made the first basic gun. This guy made the first prototype. It's called: "Basic knex cannon". Think before you type.

author
KnexFreek made it! (author)KnexFreek2009-09-08

i found one online at some random website copyright yr 2000!!!!!!!!!!!!!!!!!!!!

author
chopstx made it! (author)chopstx2009-07-08

if thats a cannon, whats IAC's heavy "cannon"?

author
Sekiha_tenkyoken made it! (author)Sekiha_tenkyoken2009-07-20

A big crossbow?

author
chopstx made it! (author)chopstx2009-07-21

no i am saying that if that is a cannon, then IAC's heavy cannon must be a humongosauraus cannon. lol.

author
Sekiha_tenkyoken made it! (author)Sekiha_tenkyoken2009-07-23

Oh, okay..

author
Millawi Legend made it! (author)Millawi Legend2009-06-13

https://www.instructables.com/id/Basic-Knex-Cannon/ that is the first kne'x gun. you owe me an apology.

author
DJ Radio made it! (author)DJ Radio2009-06-08

we know that his gun is not the first. This guy made the first gun (not this one)

author
Bartboy made it! (author)Bartboy2009-07-05

He didn't invent them... he posted one on the internet. The K'nex company invented them long before that.......

author
SeMi_AuToMaTic made it! (author)SeMi_AuToMaTic2009-03-22

yes he did.

author
cerj made it! (author)cerj2009-05-24

I thought Oodalumps invented semi auto's. What's going on here?

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