Introduction: Knex Bazooka

Picture of Knex Bazooka

This is a new design, it is powered by rubberbands and huge orange motor. It does have a true trigger, for people who only care about the triggers, but the trigger does take down 5 ft from its range. Its range is 25 ft, and it takes approximatly 30 sec. to load with trigger 2.5 sec to load without trigger. There are 3 speicial parts in this gun that some of you may not have.
one: the red track
two: the purple cart that runs on the red track
three: the orange motor that pushes the cart out.
All three can be found in the rippin rocket roller coaster set. Ill be doing this instructible in three parts. the trigger, the cage, and the barrel.Enjoy.

Step 1: The Trigger

Picture of The Trigger

This step is optional!
Pic 1:the stopper thingy,build.
pic 2: another pic of pic 1.
pic 3:rod that connects trigger to the cage,build.
pic 4:trigger,build.
pic 5:another pic of pic 4.
pic 6:a third pic.
pic 7:add the rod to the trigger
pic 8:add the stopper to the trigger
pic 9: another pic of pic 8

Step 2: The Cage

Picture of The Cage

not optional
This is the cage that holds it together.
pic 1:front cage,build.
pic 2:another pic.
pic 3:another pic.
pic 4:another piece,build.
pic 5:another pic.
pic 6:another pic.
pic 7:add the two thing you just made.
pic 8:another pic.
pic 9:another pic/im tired of writing the same thing over and over.
pic 10:the bottom,build.
pic 11:another pic.
pic 12:top,build.
pic 13 another pic.
pic 14:another pic.
pic 15:Add the top and bottom together.
pic 16:another pic.
pic 17:Add the first two parts to the second two parts.
pic 18:another pic.
pic 19:another pic.

Step 3: The Barrel

Picture of The Barrel

This is the hardest step to do, so just try to follow along.
pic 1: make this middle support thingy.
pic 2: make the end barrel.
pic 3:another pic.
pic 4:another pic.
pic 5:make the middle barrel.
pic 6:another pic.
pic 7:make the front barrel.
pic 8:another pic.
pic 9:another pic.
pic 10:another pic.
pic 11:add middle barrel to the front barrel.
pic 12:another pic.
pic 13:add end barrel to middle barrel.
pic 14:add middle support thingy.
pic 15:another pic.
pic 16:the barrel complete.
pic 17: just another pic.

Step 4: Put It All Together!

Picture of Put It All Together!

In this step we will put it all together.
pic 1:Line them up,trigger and cage.
pic 2:attach here make sure you have it right.
pic 3:another pic.
pic 4:end of barrel attaches here.
pic 5:and here.
pic 6:stopper should come up like this.
pic 7:yellow rods run through the motor.
pic 8: another pic.
pic 9:another pic.
pic 10:another pic.

Step 5: Rubberbands!

Picture of Rubberbands!

just add rubberbands as you follow along.
pic 1:turn it upside down and hook rubberbands like this.
pic 2:another pic.
pic 3:another pic.
pic 4:add roller coaster and hook two rubberbands in the back.
pic 5:this is where they hook on to.
pic 6:on the other side.
now turn on the motor pull the trigger and woolah. your happy:)


Dr MonkeyMan (author)2013-06-24

I am building a roller coaster launcher too except i am using 2 orange motors

dltrene (author)2010-07-22

ok first why did u not use both boosters.. and second did u know that it goes MUCH faster if u use the ac adapter i put one booster with batteries on the floor and turned it on and it was passed and i put the other with the ac adapter on the floor turned it on and it almost shook :O :D

builder968 (author)2008-07-05

would build, but of course, I DON'T HAVE AN ORANGE MOTOR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

dnmonsen (author)builder9682010-06-19

why not

builder968 (author)dnmonsen2010-06-20

Um, because I don't have one.

i have 2 :p

Lol yea, gotta love that rippin rocket rollercoaster :P

Congrats, my 500th recieved comment!

Yay! What do I win? xD

lol i used my old car motor toy car motor which was the spider terror from hot wheels i think

SO buy a $40 used rippen rocket off of ebay (including shipping, buy used-it is a hell of a lot cheaper) and stop complaning.

lol what does it shoot???

it shoots rollercoaster carts

knexfreak95 (author)Tom Buckey2009-06-04

i think it shoots BALL but no seriuosly

TigerNod (author)Tom Buckey2009-02-28

The cart from the ripping rocket set.

Tom Buckey (author)TigerNod2009-03-01


no. handheld cannon by i_a_c is better.

Pizzapie500 (author)2009-10-22


smattman22 (author)2009-07-14

this must hurt!

erikos kostarikos (author)2009-01-01

this thing shoots carts!whahaahahaah!

f22araptor (author)2008-01-16

how much does the motor cost

cc121862 (author)f22araptor2008-05-13

The motors come with the Rippin' Rocket roller coaster knex set. As far as I know there is only one way other than buying the set :

Migacz (author)cc1218622008-12-13

or... toys r us- six years ago MWAHAHAHA!!!!! no really i got mine six years ago at toys r us

fobblewabble (author)f22araptor2008-03-16

i have no idea. srry

Bartboy (author)2008-11-07

wahhh!!! dont have motor!!!! yet....... xmas!!!!

Migacz (author)Bartboy2008-12-13

its only in roller coasters- knex, that is- same with track- I suggest rippin rocket

knex maddo (author)2008-10-16

you should call it "knexzooka"

TJS (author)2007-12-01

I made one that shot tires, it destroyed my lego model and my mums furniture

ry guy (author)TJS2008-06-26

what furniture did it break?

TJS (author)TJS2007-12-01

i used 2 motors

TJS (author)TJS2007-12-01

also it was semi auto, so when one tire was fired another one dropped in place

CoolJB (author)2008-04-05

Lol, cart launching bazooka.

fobblewabble (author)2008-01-18

i have no idea

bounty1012 (author)2007-12-23

how do you make one that shoots tires? I wanna rule the world!!!! bwahahahaha

F-17 (author)bounty10122007-12-30

im going to to post a tire gun soon!

F-17 (author)F-172007-12-30

it going to be large

ry guy (author)2007-12-02

This is cool!!

Jill 32 (author)2007-10-20

I would build it if i had the motor. About how much does rippin roller caoster set cost?

japck (author)Jill 322007-11-14

go to knex .com and u can buy the motor

the_burrito_master (author)2007-09-21

I made something like this but it wasn't rely meant to be a bazooka I was just trying to shoot my brother with it I might make one of thees xcept better "great idea"

Pbyrd (author)2007-09-04

Join my group Knex RPG The goal is to make one of these using only springs and rubber bands to propell it

Brandon123 (author)2007-08-20

where can u find the motor? i looked everywhere

fobblewabble (author)Brandon1232007-08-26

I got mine in the rippin rocket set

fobblewabble (author)2007-08-02

How come not that many people can find this. I cant even find this is the recent knex instructibles?

can you not see your own instructibles on the recent knex list?

knex hater hater (author)2007-08-05

well,it looks very square,but i love the system,but it seems from the look of it its to heavy to carry because of the off balance,and it doesent look like it can support the motors in air,but its a 8/10 gun.

its not that heavy, or off balance, as long as you hold it right.

KamikazeSniper360 (author)2007-08-06

Can't you put little people in the cart? That would be funny to see tiny people fly out of a bazooka. :D

About This Instructable




Bio: My real name is Ryan.
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