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

[The Real Phil Swift]

How many knex balls were used?

[J'RonM]

awesome!

[FanPlastic]

Only twenty nine point eight seven three pieces? That's funny I would guess it would be more like somewhere around 29,873

[GrimEagle]

That's amazing.

[GrimEagle]

Wow.

[FanPlastic]

Nice ball machine check out mine

[Lolman4000]

Wow so cool! I think the most amazing part is that you did it with just 3 motors!

[tylerman123]

alright now give us step by step instrutions :)

[Lolman4000]

lol

[Quidditch33]

Instructions? Lol jk

[www139]

what k'nex tubing do you think is best for k'nex ball machines?

[www139]

I've watched the video like at least 100 times and I still don't know how you got that zig-zag element to work (I've made some myself!!!)

[dr. richtofen]

AMAZING!!!

[knexforever]

i agree

[Kairah]

Thanks!

[dr. richtofen]

No Problem!

[knexforever]

this is epic beyond beleif. congratulations!

[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.

[Alocke]

In case you're still wondering, there are no instructions for something like this. He designed and built it over a really long time, and likely bought quite a few extra pieces along the way. I'm working on something similar right now, and it's a lot of patience and taking things apart when they don't work exactly how you want them to

[hunter999]

Truly awesome, This is by far the most colossal K'nex ball machine on instructables and was more than worthy than my time, it is far beyond optimum! You earnt a sub! Keep it up mate ( yes this comment is late...)