Introduction: Dutchj's Semi-Automatic K'nex Gun

Picture of Dutchj's Semi-Automatic K'nex Gun

Well, here it is. My blue rod shooting, 7 shot semi-automatic k'nex gun.

It's no more or less powerfull then most sub-automatic guns, and is very reliable ( It sometimes misfires, but it never jams ).

It's not a perfect semi-auto, because you can't keep your finger on the trigger at all times. You pull the trigger and let it shoot back into place, and then pull the trigger again.

P.S. Sorry for the slightly blurry pictures, I don't have any good camera's.

Step 1: Trigger

Picture of Trigger

This is the trigger. It should be easy enough to build.

Step 2: Left and Right Mech. Panels

Picture of Left and Right Mech. Panels

1. This is the left panel, it includes all connections to the right panel.
2. This is the other side of the left panel. Make sure you put the 2 grey spacers on, they stop the back of the gun from collapsing inwards.
3. This is the right panel. It's basicly just the left panel without all the connection points.

Step 3: Firing Pin

Picture of Firing Pin

This is the firing pin. You don't need to tape the spacers, but I did so because grey spacers tend to wear down. The trigger connects onto the ball joints.

Step 4: The Barrel

Picture of The Barrel

1. This is the barrel and magazine, what you will be building in this step.
2. First build this. There are 15 yellow connectors.
3. Now build the barrel. The grey connectors are decapitated. ( see picture 4 ) You can also break an orange connector in half.
4. You will need 2 of these, you can't use black ball joints!
5-6. Build the magazine.
7. Build the extra support
8-9. Attach these 3 parts together.
10. Add 2 metallic blue clips ( You can also use 2 spacers and 1 tan clip ) on each side.
11. Add the extra support

Step 5: The Handle

Picture of The Handle

This step is pretty easy.

1. The side
2. The front
3. The back

Step 6: Put It All Together

Picture of Put It All Together

In this step you will assemble the parts.
1. Add the trigger to the left panel. Make sure the white rod through the grey connectors goes through the hole in the white connector.
2. Now add the right panel.
3. Add the handle. Note that I turned it around, don´t get confused.
4. Add the firing pin to the barrel.
5. Now add the barrel to the rest of the gun. You´re done! Be sure to check step 7 for the rubber bands.

Step 7: Rubber Bands

Picture of Rubber Bands

In this step you will add the rubber bands
1. These are the rubberbands I have on. you need 2 thick rubberbands and 6 small thin ones.
2. double up 2 rubber bands 2 times and put the on the trigger like so, one on each side.
3-4. Add the thick rubberbands and 3 thin rubberbands onto the firing pin and upto the front. Now test fire a few times. If you think it's too weak, try to add more rubberbands. But when it doesn't pull back the firing pin far enough, or not at all, remove some rubberbands. Try to get the perfect combination between pulling back distance and power.
5. Put the final rubberband on the magazine like so. You're done! load some blue rods into the magazine and fire away!.

Step 8: Grey Connector Barrel

Picture of Grey Connector Barrel

This is a mod that will make it shoot grey connectors, which get you more range. Before you begin take of the entire barrel.
1. First edit the firing pin. Take the spacers of, and replace the middle yellow connector with a blue. Don't forget the green rod! This makes sure the red rod doesn't shoot of. Also don't forget the green rods on the yellow connectors.
2. Now remove the blue rod with the 2 spacers in between the panel, turn around the white rods, and place is as shown in the picture.
3-5. Now start the barrel. The pictures show the side, the top and the bottom.
6. Now add these rods to the barrel.
7. This is the magazine. You can see it is somewhat the same as Oodalumps'. It will hold 7 shots, if you want you can make it taller so it can hold more.
8. Simply add it to the barrel like this.
9-10. Add the firing pin to the barrel, and add it to the back of the gun.
11. Now just add some yellow connectors above the barrel, and be sure to connect them with a blue rod at the front.
12. And finally build the pusher rod.
13. This should be the finished product. Just add the rubberbands to the trigger, and to the front. Make sure you have at least one big, or a few small ones wrapped around the upper blue rods, or else the firing pin will be too low for the trigger to connect.

Now load it, add the pusher rod ( with a rubberband ), and have fun.

Comments

black ops (author)2011-08-02

looks like spas 12

grimmjowking (author)2011-03-05

the gun was okay but i modded it to shoot around 25 feet and also plan on using the magazine on other guns

C.L.A.U.D.I.O. (author)2010-09-05

its a gd gun it works fantasticly, exept i spent 2 hours buildin somtin that shoots about 2 meters :(

Spycrab (author)2010-08-16

Pretty sweet prototype mech, I'd really like someone to improve on it =) I tried making it but then saw the comments saying in wasn't that great, and stopped. But I really do think the mech is amazing!

knextard (author)2008-10-19

this gun is not powerful enough i had put 2 big rubber bands on it in 2 thin ones the firing pin does go back but when im shooting it it just doesnt get the speed needed to like pierce through paper =(

Dutchj (author)knextard2008-10-19

This gun can't go through paper. It's an experimental semi-auto. To make a powerfull semi auto is nearly impossible with just K'nex and rubber bands. Otherwise it would still be a huge gun.

agent47. (author)Dutchj2009-01-21

kan i make dis gun without y connectors?

EATLEAD97 (author)agent47.2010-08-13

omg you like hitman also:D

agent47. (author)Dutchj2009-01-21

thanks but no thanks i made it already its okay.!

agent47. (author)Dutchj2009-01-21

kan i make dis gun without y connectors? kan i make dis gun without y connectors? kan i make dis gun without y connectors? kan i make dis gun without y connectors? kan i make dis gun without y connectors?

knextard (author)Dutchj2008-10-19

that sux =(

Katarukito (author)2008-07-26

your laughing at other people's health problems? oh just messed

DrWeird117 (author)Katarukito2008-08-26

I got an arm blown off last year in Iraq!

Katarukito (author)DrWeird1172008-08-26

which arm

DrWeird117 (author)Katarukito2008-08-26

Right. I'm a lefty. Replaced w/ a prosthetic/robotic.

Katarukito (author)DrWeird1172008-08-26

well since your an instructabler i bet you tried to mod the robotic arm

DrWeird117 (author)Katarukito2008-08-27

Laughing so hard I can't breathe!!!

Katarukito (author)DrWeird1172008-08-27

What do you mean?

DrWeird117 (author)Katarukito2008-08-29

That was funny!

Katarukito (author)DrWeird1172008-08-29

oh happy to make someone laugh :-) so did you mod it... if so what did you add/take off

DrWeird117 (author)Katarukito2008-08-30

heck no! didnt mod.... lol

Katarukito (author)DrWeird1172008-08-30

why not? atleast put some LED lights on it, maybe a ipod holder build into it

DrWeird117 (author)Katarukito2008-09-10

I don't wanna break the arm...don't give me ideas, LoL

Merugop (author)DrWeird1172009-10-14

 a cupholder or a tv maybe a knex gun built into it and a toaster

fib3roptix (author)DrWeird1172009-04-12

DRINK DISPENSER!!!! sorry. XD

Katarukito (author)DrWeird1172008-09-10

dont you have any spare arms? and do you cut your fake wrist and call yourself emo :]

DrWeird117 (author)Katarukito2008-09-10

LOL....No, robo-mo.

Katarukito (author)DrWeird1172008-09-10

may i borrow your arms

DrWeird117 (author)Katarukito2008-09-10

Um....no, I have only one.....

DrWeird117 (author)Katarukito2008-08-30

OMG...........

fib3roptix (author)DrWeird1172009-04-11

You could be like the friggin terminator with a lazer on it.

DrWeird117 (author)fib3roptix2009-04-12

XD No, that was my cousin. My OTHER cousin, whom I don't see anymore, was in Iraq, and since my little cousin, (the little nuisance who logged into my account *he's 9 now*) hardly ever sees either one of us anymore, he gets us confused. So...yeah.

fib3roptix (author)DrWeird1172009-04-12

Isn't those arms controled by yer brain cause its hooked up into yer shoulder?

DrWeird117 (author)fib3roptix2009-04-12

No, that was my cousin. My OTHER cousin, whom I don't see anymore, was in Iraq, and since my little cousin, (the little nuisance who logged into my account *he's 9 now*) hardly ever sees either one of us anymore, he gets us confused. So...yeah.

fib3roptix (author)DrWeird1172009-04-11

Yhea my grandpa got both legs blown off in vietnam war and he just always wears shorts.

DrWeird117 (author)fib3roptix2009-04-12

Oh, man...I'm sorry.

fib3roptix (author)DrWeird1172009-04-12

Its cool he has some prosetic legs too. it was like 40 years ago

DrWeird117 (author)Katarukito2008-11-22

Stupid cousin...No, I didn't. He also started that argument with apples!!!!!, back when this account was his. I just discovered this comment of his. Grrrrr.... Next time he comes over, I'll...UGH!

fib3roptix (author)DrWeird1172009-04-11

o yhea can you accualy type with yer Roboarm if so that is PIMP!

DrWeird117 (author)fib3roptix2009-04-14

No, that was my cousin. My OTHER cousin, whom I don't see anymore, was in Iraq, and since my little cousin, (the little nuisance who logged into my account *he's 9 now*) hardly ever sees either one of us anymore, he gets us confused. So...yeah.

fib3roptix (author)DrWeird1172009-04-12

Yhea I got 3 sisters all younger that me I feelz your pain bro!

DrWeird117 (author)fib3roptix2009-04-12

Mm...Sorry. :(

~KGB~ (author)2009-07-17

i know , they look so realistic

Killer~SafeCracker (author)2009-07-16

I finally found it. This was the first gun I built when I came to ibles 2 years ago. Wow, I never thought I would find it again.

xD You picked a bad one for your first though. I guess that means it only got better from then on, right?

YA But like I said it was my first so I didn't know how it would turn out.

But the concept was good.

That was the idea, after all. Too bad nobody ever improved it.

~KGB~ (author)2009-07-16

you dont either

An Villain (author)2009-07-15

why, i don't see you building anything.

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