Introduction: Oblivitus' Knex Sword

Picture of Oblivitus' Knex Sword

A knex sword that I made on mlcad. The blade is flimsy, unfortunately. Build it from the pictures. I've provided close ups of all the sections. I suggest starting by building the hilt.

If you build it, post some pictures. I might put them at the end of the slideshow.

I'd like to thank the following people for their pictures:


tinyhooman (author)2016-09-12

omg this is so much better than mine I made an instructable for a longsword which is really a shortsword compared to this but can you please check out mine?

joshqua (author)2013-06-05

This looks like a neat sword and I would like to build the hilt for my other blade. Could you post some better pics of the hilt please.

Tuba man8175 (author)2011-06-28

i made a six foot claymore using a similar style blade I will post a few other swords before I post the camore meanwhile check out my tubas and saxophone

noobererer (author)2010-01-11

Why do people always use so many yellow connectors :P

i have about 1000

_kira_ (author)noobererer2010-01-17

i have 1376 yellow connectors

noobererer (author)_kira_2010-01-18

0_0 ........

I have like 100 - 200 i think :P
lots of them brake or my little brothers and little sister lose them ... I only have knex at my dads which I only go to every second weekend, I tell them not to play with them but they do constantly

knex inventor (author)2010-10-28

it looks a bit flimsy if you memorize it as a real thing.

Chikara (author)2010-06-10


CrankiestToast (author)2010-04-04

One question, How do I take this sword apart?

Oblivitus (author)CrankiestToast2010-04-04

By using it, lol. But I've never made it so I wouldn't know.

CrankiestToast (author)Oblivitus2010-04-04

The thing is, when I swing it, it begins to snap then when you swing it again, it all snaps back into place. The sword never breaks apart, lol.

heatblast (author)2010-03-13

Since the blade is flimsy, it can now be known as a whip sword. Like a real whip. The blade doesn't have to be strait to hit someone. You can still hit somebody with this if you flex the blade at an angle. don't do that tho, unless the person annoyed you first. Be nice to your surroundings :)

Vynash (author)2010-01-08

Finished the sword, It turned out.... Not so strong but its fun!

Pics below and my foot on the last pictures are a size 8 and a half shoe.

smattman22 (author)Vynash2010-03-10

10 here bud. :P Beat that....11 year old here.

Vynash (author)smattman222010-03-10


DJ Radio (author)Vynash2010-01-09

Sword blade fail lol.

Oblivitus (author)DJ Radio2010-01-09

Lol, I know, epic structural fail. Still looks good though.

KnexFreek (author)Oblivitus2010-03-03

 LOL you should tell people not to make it unless they are making it for looks on the slideshow.

Raikou-san (author)Oblivitus2010-01-10

You could make it 6 layers. Or even 11, if you have the parts.

Vynash (author)DJ Radio2010-01-09


An Villain (author)Vynash2010-02-03


Vynash (author)Vynash2010-01-08

Oh, and It's so flexible but it has never snapped on me.

PindaHoofd (author)Vynash2010-01-09

Try putting white rods between the yellow cons.

Oblivitus (author)PindaHoofd2010-01-10

I was thinking about that today and I think that you're right, that would make it much stronger.

PindaHoofd (author)Oblivitus2010-01-16

I tought of that when i wanted to make it but when i was looking to the comments someone already made it.

Vynash (author)PindaHoofd2010-01-09

ehhh im breaking it today, not gonna bother

PindaHoofd (author)Vynash2010-01-09


Oblivitus (author)Vynash2010-01-09

Holy crap, that's really flexible, lol. O well, it's still nice. Thanks a lot for the pictures.

sprout_less (author)2010-01-22

 I'll try and make a sword in 2 or 3 weeks.

KnexFreek (author)2010-01-06

 i wayyyyyyyy prefer this over tbm's. his is ugly, this is nice. 

why tbms was modeled after a sword in a video game(and if you use alot of black rods its really strong)

Oblivitus (author)KnexFreek2010-01-06


KnexFreek (author)Oblivitus2010-01-06

 No prob! also..... POST :D

Oblivitus (author)KnexFreek2010-01-06

I posted more pictures to build it with. I decided that there's no need for an instructable.

knexsuperbuilderfreak (author)2010-01-08

how long is the blade part?

13 then the greens on the end make it 14, counting on the bottom row

TheDunkis (author)2010-01-07

I wonder how many people actually built it. Anyways it looks strong but very uncomfortable to hold. I didn't build it but I still bet that it would be flimsy like all 3 layered swords. There's not much to do about that though. I'm afraid though that like all solid things though that when this finally does break, it would break pieces instead of just snapping sections off. A little give in a K'nex sword can be a good thing to help it from literally breaking.

Oblivitus (author)TheDunkis2010-01-07

Agreed, except for the comfort comment, I think that it's fairly comfortable.

Vynash (author)2010-01-06

POST IT ASAP I WILL BUILD IT!!!! & rate it 5 and favorite it

and you will move up 1-2 spaces on my top 10 list!

Oblivitus (author)Vynash2010-01-06

I posted more pictures to build it with. I decided that there's no need for an instructable. Don't worry though, it's simple.

Vynash (author)Oblivitus2010-01-06

Ok thanks for those pictures I'll build sometime :)

Oblivitus (author)Vynash2010-01-07

Post a picture of yours if you do. I'd like to see what a real one looks like. It would be nice if you were holding it too, since that's something that I can't do on the computer model. I'll put the pictures at the end of the slideshow.

Vynash (author)Oblivitus2010-01-07

Oh yes I will post pictures when I'm done, And BTW I'm 12 so it may be smaller on you haha!

knexsuperbuilderfreak (author)2010-01-06

if you want i can post this for you

No thanks, if anyone needs more pictures, they can ask and I will add them.

Mr. Muggle (author)2010-01-07

looks pretty sturdy, nice 3 layer design

mettaurlover (author)2010-01-07

Built a staff like this, but just about as strong.

Hiyadudez (author)2010-01-06

Hmm, not bad. 4*.

About This Instructable




Bio: I paint, write music, and used to build knex guns. I have a Bachelor's Degree in Studio Art. - updated 5/7/2014
More by Oblivitus:Z3 Knex Gun (3-Barreled Semi-Auto Pump Action Revolver)Z3 Knex GunZ3 Knex Gun Firing Demonstration
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