Introduction: Knex Strong Monney Box

Picture of Knex Strong Monney Box

this is my knex strong monney box. i built this because i needed somwhere to put lots of change i have. it is realy strong and has a secret way of opening it. it can hold alot of coins but it may be hard to pull paper monney out. i think this is the first knex monney box on the whole of the internet (again)!!! if people have trouble working out how to open it i will add a video (i will make it smaller this time). have fun building.  :)

wow i got 47 views and 2 ratings and 4 comments in 2:30 hours on this 1 instructable!!!

i have done some small changes to it making it stronger and allowing you to use paper monney and it has a small hole to put coins in through but some times the coins can fall out. should i post it as a update???

lol i edited it a bit more and now it is a one-way monney box!!! seriously i cant get it open!

Step 1: Piece Count

Picture of Piece Count

this uses a hell of alot of blue rods and red connectors so get the following pieces ready...

4 yellow rods                     ha this uses no pieces at all...

43 blue rods                       thats not so bad...

92 red connectors             i retake my last 2 statments...

Step 2: Build All of This Stuff

Picture of Build All of This Stuff

just build the stuff.

Step 3: Add Rods Where Shown

Picture of Add Rods Where Shown

add rods where shown.

Step 4: Assembly

Picture of Assembly

do as the pictures say and your done

Step 5: Opening and Closing

Picture of Opening and Closing

this part may be hard to understand.


JRDUKIE (author)2016-07-12

It was very hard on my hands. When I was done I had blisters all over my hands.

joshqua (author)2012-11-26

This is awesome!!!!!!!!!!!!!! I have hardley any reds so I had to use green and yellow connectors:( and it was made wiht only blue rods no yellows. Bus still awesome.

knexinventer (author)2012-07-20

i made it a year ago and it sits on my self and check this one i made also a comparison

Inventor X (author)2011-09-26

I made it smaller with some white rods and such...XDDDD

H1T4TCH1 (author)2010-10-15

i made it 3 months ago and i still have it, it's amazing!

H1T4TCH1 (author)H1T4TCH12011-08-31

I now have it for a year :D

super knex builder (author)2011-07-22

kool! Cant make yet though, workin on ur safe, it so cool!

mettaurlover (author)2010-09-12

I got to the impossible square. Not really fair to do that when people have FireFox plugins to remove note squares.

tytiger33 (author)mettaurlover2011-05-22

Where do I get the plugins.

mettaurlover (author)tytiger332011-05-22

Please go away.

tytiger33 (author)mettaurlover2011-05-23

Is that the name of the plugin?

mettaurlover (author)tytiger332011-05-23

No, it's what I want you to do. Three seconds on Google will tell you more than I intend to.

tytiger33 (author)mettaurlover2011-05-23

I cant find it. Just tell me the name of the plugin.

mettaurlover (author)tytiger332011-05-23


slithien (author)mettaurlover2010-09-14

oh...........congradulations!!!!! your my 300th commenter!!!

mettaurlover (author)slithien2010-09-14


slithien (author)mettaurlover2010-09-14


mettaurlover (author)slithien2010-09-14


slithien (author)mettaurlover2010-09-14


qwerty987 (author)2011-04-25

i dont know how i got the imposible square but it was an acident

joey99 (author)2011-04-25

5 stars and subed!!!

BalintRules (author)2010-10-20

If u cant open it will probably have constipation

slithien (author)BalintRules2010-10-20


leafydave (author)2010-10-18

i have that prank but its spider eggs

slithien (author)leafydave2010-10-18

Lol funny arnt they

glugnar (author)2010-09-30

he he he this is so awesome im trying to mod it to hole a ripstik wheel so i can make a little knex scooter thing :-D

glugnar (author)2010-09-30

YAY IMPOSSSIBLE BOX!!!!!!!!!! ALL I HAD TO DO WAS USE IE CAN I HAVE COOKIE 0.0 *looks up with puupie eyes*

glugnar (author)2010-09-30

dude this is aweosme my little bro can stand on it and it wont break...ok not to impressive but also i can stand on it and it wont break and im 110 pounds (50 kg for those non americans) so a little bit better but still now to much.......ok and my dad can stand on it and he is 250 pounds (113.6 for those non americans)!!!!!!!! now thats sayin somethin

glugnar (author)2010-09-29

lol at the comments of the "ha this uses no peices at all" "thats not so bad..." "i ratract my last to statements" that was a great little peice

mrawesome (author)2010-08-18

i got to "The impossible square"

slithien (author)mrawesome2010-09-06

Lol, your prize is........ Rating this instructable 5*!!!! joke rate with your free will!!! XD

slithien (author)2010-09-06

Lol pikmin someone needs to make a account with the man thats lost on their planet( i dont know his name, i thinks its omar???) !!! Lol XD thanks for 5*!!!

Michaelgoode (author)2010-08-30

Awesome 5 stars and subscribed

slithien (author)Michaelgoode2010-08-30

Thanks for 5* + subscibing. :)

knexsuperbuilderfreak (author)2010-08-10

i should this :P

Vynash (author)slithien2010-08-10

he meant to say "i should make this :P"

dont you love typos? :P


slithien (author)Vynash2010-08-16

Oly ons tht mss ot letrs bt stll mkin th wrds redble

Vynash (author)slithien2010-08-16

Haha, Any typo is annoying :P

Millawi Legend (author)Vynash2010-08-20

No, oens lkie tehse are cool bcaseue you can slitl raed the wrdos. You can slitl raed the wrdos baesuce the hmaun mnid rdaes wrdos as a wohle not the iaudivudnl ltreets.

Vynash (author)Millawi Legend2010-08-20

No they are not cool, the human mind is, not the people who do that.

slithien (author)Vynash2010-08-20

Em cnoufuesd

Vynash (author)slithien2010-08-20


slithien (author)Millawi Legend2010-08-20

I kow

slithien (author)Vynash2010-08-11

Oh, thanks

fuzi (author)2010-08-13

yeah it was easy

talons98 (author)2010-08-12

awsome 5*s

slithien (author)talons982010-08-12

Thanks for rating 5*

About This Instructable




Bio: my 1st comment=12marjnS12 my 10th comment=Odin6616 my 100th comment=brentbrent my 200th comment=knex gun builder my 250th comment=mettaurlover my 300th comment ... More »
More by slithien:funny water and brush prankknex NES speedboardknex monney maker magic
Add instructable to: