Metropolis - a K'nex Ball Machine

Direct link to video

 

Finally it's done! Metropolis, my second ball machine. It has a total of 12 different paths, 16 if you count all small sidepaths as well. And it consists of many new elements I designed myself.

I have posted the instructions of some elements here:
Link to Instructions


Building time:            Oct '09 - Aug '10

Dimensions:              Width   1.40 m
                                      Depth  1.15 m
                                      Height 2.40 m

Weight:                        48 kg

Number of pieces:    29.873


Enjoy the video and thanks for looking.

Kairah

Comments

[geeksquad]

can you tell me were i can buy this, i would really appreciate it. i love knex and i want to build this thing so if you could please tell me were i can buy it and how much it was thank you.

[ryry2011]

if you dont mind me asking how much money do you think you have in knex?

[CaseBoy]

I don't really care for k'nex, but that was the most ingenious thing I have ever seen. props.

[crackman]

Great ball machine! This is probably the best ball machine on instructables. Nice job.

[Retro Correct]

+1 on the Philip Glass music!

[tylerman123]

alright now give us step by step instrutions :)

[soap and price]

How did you make that!!!!!!!!

[Gnmar2723]

hey kairah are you making a new machine or or you just going to leave metropolis up forever? because i think everyone in the instructables knex ball machine community thinks your a god or something and we really want to see another machine if your making one or know if your never going to make one again. PLEASE RESPOND! YOU ARE AMAZING!!!!!

[dylan434]

awesome work!

[Orangeprofessor]

hai

[arjun1]

WOOOOOOOW!!!!!!!!!!!!!!!!!!!!!!!
so cool!!!!!

[Orangeprofessor]

Great music

[dr. richtofen]

AMAZING!!!

[Kairah]

Thanks!

[dr. richtofen]

No Problem!

[knexinventer]

awesome again. i was thinking that if you want a challenge tat you could try to rebuild one of these from this site or any others again you dont have to. K.I
http://www.automotto.com/entry/k-nex-assembles-rods-connectors-to-replicate-means-of-transportation/

[Puddock]

Those are incredible! Did you make these?

[knexinventer]

no they were on a website

[Puddock]

Oh.

[Puddock]

Awesome!

[Cristiano Ronaldo]

Holy crap I thought that it took 2year or some thing like that5*

[Elap]

Oh, wow! There are so many original ideas here.

Hearty congratulations on a wonderful achievement.

[bbaron1]

WOW! I don't have any words to express what I want to say. That is just amazing!

[weirdestguy98]

HOLY CRAP!!!!!!! I'VE SEEN SUM AMZAING STUFF BUT THIS BY FAR IS THE KOULEST THING I'VE EVER SEEN IN MY 13 YR OLD LIFE!!!!!!!!!! YOU R MY HERO!!!!!!!!!!!!!!!

[lguillette]

Absolutely incredible. Beyond words.

[skyrider94]

who thinks this should be a knex set... it would cost 1000 pounds but who cares

[TigerNod]

O_O

I am stunned. I absolutely am. What is there to say about this, other than that it is awesome beyond words?

[AlternateLives]

If that number (piece count) is what I think it is... you have WAY too many Knex. But at least you can build with them. I mean it. That is awesome!

[mystermysteryguy]

i luv it =)

[nickcube4]

This is insane! It Should go in a museum

[timmmy]

HOOOOOOOOOOOOLLLLLLLLLLLYYYYYYYYYY SSSSSSSSSSSSSHHHHHHHHHH#TTTTTTTTTTTTTTTTTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!!! ITS HUGE

[patriots8888]

THATS WHAT SHE SAID!

[imdoinme1999]

Hehe.. Like^^

[sleepismything92]

If you can make this you have soo much potential as a mechanical engineer and even more. this is just mind boggling but you got some straight up real potential. now you just have to channel this into a real-life machine or something similar. like a childs vending machine for in places like chuck-e cheese's that gives you the ball at the end of this whole contraption and you could charge like .75 or a dollar per play. you get the hint. your talented

[patriots8888]

Possibly the coolest knex creation ive ever seen

[Football viking boy]

that's sick!!!! subbed 5*

[Purple Waffles]

To buy all the green rods in metropolis would cost...

329.04!!!!!!!!!!!!!!!!!!!!!!!!!

HOLY SWEET JESUS

[cheezy monkey]

I had nothing to do today, so spent a few hours skimming through instructables, when I found this... This is just staggering. It is amazing. How do you make such a huge thing? And how much did it cost?!

[This Is My Username]

is damazing

[Rizzy]

Did you plan the whole thing and then build it, or went with the flow and did whatever came to mind?