Introduction: 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

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

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

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!

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!

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:)

Comments

author
Dr+MonkeyMan made it!(author)2013-06-24

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

author
dltrene made it!(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

author
builder968 made it!(author)2008-07-05

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

author
dnmonsen made it!(author)2010-06-19

why not

author
builder968 made it!(author)2010-06-20

Um, because I don't have one.

author
RMConstruction made it!(author)2009-06-07

i have 2 :p

author
bounty1012 made it!(author)2010-01-17

Lol yea, gotta love that rippin rocket rollercoaster :P

author
RMConstruction made it!(author)2010-01-18

Congrats, my 500th recieved comment!

author
bounty1012 made it!(author)2010-01-18

Yay! What do I win? xD

author
knex_mepalm made it!(author)2009-09-08

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

author
Electroinnovation made it!(author)2009-01-26

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.

author
Tom+Buckey made it!(author)2009-02-23

lol what does it shoot???

author
mysticperson23 made it!(author)2009-07-09

it shoots rollercoaster carts

author
knexfreak95 made it!(author)2009-06-04

i think it shoots BALL but no seriuosly

author
TigerNod made it!(author)2009-02-28

The cart from the ripping rocket set.

author
Tom+Buckey made it!(author)2009-03-01

lol

author
builder968 made it!(author)2009-01-27

no. handheld cannon by i_a_c is better.

author
Pizzapie500 made it!(author)2009-10-22

AHHH DON'T KILL THE LITTLE PEOPLE!!!

author
smattman22 made it!(author)2009-07-14

this must hurt!

author
erikos+kostarikos made it!(author)2009-01-01

this thing shoots carts!whahaahahaah!

author
f22araptor made it!(author)2008-01-16

how much does the motor cost

author
cc121862 made it!(author)2008-05-13

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 : ebay.com

author
Migacz made it!(author)2008-12-13

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

author
fobblewabble made it!(author)2008-03-16

i have no idea. srry

author
Bartboy made it!(author)2008-11-07

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

author
Migacz made it!(author)2008-12-13

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

author
knex+maddo made it!(author)2008-10-16

you should call it "knexzooka"

author
TJS made it!(author)2007-12-01

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

author
ry+guy made it!(author)2008-06-26

what furniture did it break?

author
TJS made it!(author)2007-12-01

i used 2 motors

author
TJS made it!(author)2007-12-01

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

author
CoolJB made it!(author)2008-04-05

Lol, cart launching bazooka.

author
fobblewabble made it!(author)2008-01-18

i have no idea

author
bounty1012 made it!(author)2007-12-23

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

author
F-17 made it!(author)2007-12-30

im going to to post a tire gun soon!

author
F-17 made it!(author)2007-12-30

it going to be large

author
ry+guy made it!(author)2007-12-02

This is cool!!

author
Jill+32 made it!(author)2007-10-20

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

author
japck made it!(author)2007-11-14

go to knex .com and u can buy the motor

author
the_burrito_master made it!(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"

author
Pbyrd made it!(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

author
Brandon123 made it!(author)2007-08-20

where can u find the motor? i looked everywhere

author
fobblewabble made it!(author)2007-08-26

I got mine in the rippin rocket set

author
fobblewabble made it!(author)2007-08-02

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

author
fobblewabble made it!(author)2007-08-08

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

author
knex+hater+hater made it!(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.

author
fobblewabble made it!(author)2007-08-08

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

author
KamikazeSniper360 made it!(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

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Bio: My real name is Ryan.
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