Introduction: Flexable Knex Sword

Picture of Flexable Knex Sword
Here is a sword well sort of ... that i made... Well credit to whoever that first did it i may not be the first but i may be the first at posting this instructable! Whatever...


PIC 1: Red connectors cant really give a number depending on how long you want it to be...
PIC 2: White rods... Again... depending on how long you want it to be...
PIC 3: Blue rods... Again... depending on how long you want it to be...
PIC 4: One just one plain ol red rod! It may be colored metalic like the one on my mini bow.... used to be bigger had to mini -fy it for parts... Well my room was a mess when i took these pics

Pic 5, 6 ,7: Stronger handle mods

This may be the first and only knex thing... invention that makes music!!!!

It can also be used as a rattler.... well insturment of some kind when you shack it left and right gentle and it makes a "rattle" noise ... hence i said "Rattler."

This basic concept of design maybe applied to making tank chains with grey connectors (1 connection connertor..) Whatever the possiblities are almost endless... Not really but well you get the point...

If you have any handle mods please post them cause this sword can only swing left and right but sometimes breaks...

Family Guy video.. Cool Whip!

Step 1: Step One Making the Connections (NO NO NO Not Like Drug Stuff Like Knex Connections >.>)

Picture of Step One Making the Connections (NO NO NO Not Like Drug Stuff Like Knex Connections >.>)

Pic 1: Make this with two red connectors and one white rod.. if you cant do it you got yourself a whole other load a problems
Pic 2: Add a red connector on the top
Pic 3: Just another angle i think this pics blurry....

Continue this pattern by placing another white rod through the red and put two connectors on it and continue the pattern... Kinda hard to explain when your doing an instructable in twenty minutes....

Well if ya have problems message me.. It isnt that hard..

Does my hand look browinish... it really isnt that color im white >.> sorry if im being racist

Im just pointing something out cause my finger isnt BROWN like that....

Step 2: Adding the Spikes or Swordish Stuff....

Picture of Adding the Spikes or Swordish Stuff....

Pic 1: Do it pretty simple... Grab some blue rods and snap em on...

Step 3: The Handle...

Picture of The Handle...

Pic 1: Grab one red rod and connect the red connectors... Oppisite of eachother each time ...
Well heres an example: left, right, left, right ... well you sorta get the point

Step 4: Finished~~! and Mods

Picture of Finished~~! and Mods

Snap on the handle and let it move~! well the sword that is...


Pic 1 handle mod
Pic 2 handle mod
Pic 3 handle mod

Step 5: Random Pics.... and My Sword One of Them...

Picture of Random Pics.... and My Sword One of Them...

seriously testing if my cam pics are clear...

In the picture with 1/4 of my knex well the one with the boxish thing with a weird lizard bench i got for my birthday when i was six... See those weights? Oooh ya lifting some tens everyday just to impress them girls ;D! Good stuff


blockabloke (author)2015-04-05

Why on earth would you need a sword that's flexible?!?

flyboy737 (author)2011-04-07

This is a nice design you have here! The only thing I have to say is its more like Renji's sword than Ichigos. Like in tenkai mode its like this.

jabbathegut1 (author)2010-06-20

cough* ivy - soulcalibur 3 cough* lol :P

Ienai Itami (author)2008-05-22

Hey is the real sword zangetsu?

greymatter21 (author)Ienai Itami2010-05-17

wtf its a katana...

mrbox (author)Ienai Itami2008-05-22

I bought it then sharpened it / refined on a what cha ma call it..... something sander...

mrbox (author)Ienai Itami2008-05-22


greymatter21 (author)2010-05-17

lol i got connections to weed...:P

greymatter21 (author)2010-05-17

omg a curling sword!!!!!!!!!!finaly a sword with an ORIGINAL design!nice work!!:D

SonicX 22 (author)2010-04-10

 if you had no blue spikes and only have white spikes at the end of the sword, it could be an Abyssal Whip from RuneScape

warsoldier94 (author)2009-10-18

this is like Ivy's sword from soul calibur 2

zap89 (author)2009-08-12

maybe is you replace half of the red connecter thingies with the yellow half-moon things, and then if you take of all the spikes and replace them with like retangular blocks, it would look kinda like Renji's zanpakuto "zabimaru" in shikai...

d4rksaber (author)2009-07-31

it looks more like a whip-sword, oh is that katana real?

Articas (author)2009-06-26

OMG it's like the vertiblade concept

I_am_Canadian (author)2008-08-06

Not a sword... more of a whip. Cool whip! (pun intended)

bounty1012 (author)I_am_Canadian2009-01-01


Camisado (author)2008-09-04

Isn't the Katana Ichigo's Bankai Zanpakuto? Tensa Zangetsu, the Heavenly chained moon-cutter, was it?

mrbox (author)Camisado2008-09-08


Camisado (author)mrbox2008-09-09

Cool, cool....

arrow shot (author)2008-04-15

man this makes me want to post my knex sword, but i cant cuase i dont have the camera etc. its a sword that will almost never break. it doesnt wobble either. its sturdy, i hit it almost as hard as i could on my wooden stairs, it left a scratch/dent in the wood and it didnt break.

Wicky (author)arrow shot2008-04-17

I had a huge sword that had a handle that was only big enough for one hand and it weighted nearly 5 kilo's, rendering it impossible to wield :P The only way it could be damage was because of connectors getting snapped in half etc.

garrett10 (author)Wicky2008-07-21

how much is five kilos? (I don't use metric often)

necropolian (author)garrett102008-08-17

oh my god, it's SO much easyer!

Wicky (author)garrett102008-08-02

Lol use Google :D

5 kilograms = 11.0231131 pounds

garrett10 (author)Wicky2008-08-03

I know about the search function and caculator function but i dont know anything else [instructable maybye =v] pwease?

bounty1012 (author)Wicky2008-07-03

that reminds of a sword that i made once it was very weak it was huge though about as tall as me I called it the coffin blade because it was the shape of a coffin and about as big as one but it really stunk to use because it broke if you tried to swing

Bartboy (author)arrow shot2008-08-05

use scanner to make photos of small things.

mrbox (author)2008-08-14

HOW DOES THIS HAVE A HIGHER RATING THEN MY PISTOL???? ARGH!Q! im gonna post a death flail and a sword soon...

pakman227 (author)2008-08-04

sweet, wish i had a million red knex lol

garrett10 (author)2008-07-20

Looks awsome! The blade looks like a snake spine. 5* also!

mrbox (author)garrett102008-07-20

Ty very much yes it does look like a snake spine =)

garrett10 (author)mrbox2008-07-21

I built one today.

mrbox (author)2008-07-15

Alright heres a sword you've got to build out of knex it remind me of the sword that cloud uses in final fantasy 7 (oh that was an epic game ;D)

Hi im the link!

mrbox (author)2008-07-14

Thank you... very much DarthVader... oh yeah if you arent busy anytime uhh... could you sorta teach me how use the force? ;D!

mrbox (author)2008-07-09

If you want a REAL sturdy sword go to

If you want a real sturdy sword go to and look up the soul sword =) lemme find a link.....

hmm well as of today the website is having some issues improving stuff so the category for melee weapons and other GUNS are down... so as of now you can wait till they get it back up!

Camisado (author)2008-06-20

Nice sword. what's the brand?

arrow shot (author)Camisado2008-07-04

it doesnt need to have a brand mr ninja. its knex. its a fake sword. its felxible.

Camisado (author)arrow shot2008-07-05

Meh. That's kinda answered by Mr.Box already.

mrbox (author)Camisado2008-06-21

Nice sword. what's the brand? What do you mean by brand? Its made from the knex BRAND... umm?

Camisado (author)mrbox2008-06-22

I meant the katana. The REAL SWORD

mrbox (author)Camisado2008-06-22

Oh you mean the real sword? Umm i think well I got it off of I dont really know the brand though but you can check by googling =)

Camisado (author)2008-06-19

What's so good about k'nex?

Reiben (author)Camisado2008-06-20

u can make gunz outa it? and fire em

Camisado (author)Reiben2008-06-22

Oh, yeah, right. Toy guns........

Reiben (author)Camisado2008-06-23

some r leathel, 1 i made cut my skin and left a scar. most strong 1s arnt "toy guns"

Camisado (author)Reiben2008-06-23

Oh, okay

Camisado (author)Camisado2008-06-20

What do you mean by that?

mrbox (author)Camisado2008-06-21

You: "What do you mean by that?" I mean like knex is a toy its nothing really special just a toy thats used to create fun stuff such as knex guns, models, airplanes, cars, toy swords (That do hurt), and other things... What i mean by knex is nothing really is because knex is nothing more or less then lego or anyother thing to pass the time....

mrbox (author)Camisado2008-06-20

? Nothing really I destroyed it already...

mettaurlover (author)2008-06-21

i kinda did the same thing, for tank treads... single connectors for the middle part, and two-slot connectors for the outer part. it works well... but it uses a LOT of pieces...for a BETTER tread, use all 2-slot and blue rods for them... wide, piece-consuming, but pretty useful.

About This Instructable




Bio: Just a plain old brown box ;D
More by mrbox:Spider Massacre V3.0 by MrboxFlexable knex sword
Add instructable to: