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Knex Ball Machine - Off the Wall Answered


Here's the most recent project of mine. Its a ball machine build entirely in my bathroom. It was a fun challenge and produced a very unique ball machine I think. Nothing too fantastic in terms of elements or anything. The triple loop, chain slide, the geared ferris wheel and perhaps the double helix thingys are the only things worth really noting.

Anyway, hope you folks like it. Sorry about the photos being so dark, its hard to get good lighting in a small room with no windows.



Total piece count: 8891.
That makes Sproutless the winner with a guess of 18,500. Congrats!


tht is cool but why did you build it in the bathroom?


6 years ago

Any mention of the toilet would be FAR too easy, so...

How long does it take for the ball to travel all the way around?

It changes quite a lot for the different paths, the longest one... Perhaps 20 seconds?


That's very impressive, if I tried that my dad would axe it all down and tell me to clean up the mess haha. Very cool!

Thankfully my parents are fairly tolerant :-)


No problem. Will you post?

Just kidding. That is sick man, can't wait to see what's next.

I was wanting to make something like this to but i was affraid id loose parts...

Does it get in the way at all?? Also i like how you built this with intent on challenging yourself, not to just post a giant mega thingy to post.



Just a bit, its not a huge deal. Thanks very much friend!

So how do you shower without wetting the knex?

Nice job though, and it bring small entertainment to anyone that's using the bathroom.

How did I not notice this??? I remember seeing i on youtube a while ago. Great ball machine dude. How did you convince your parents to let you do that? :-P

Quit complaining, you have a huge patio to build in. :-P

...which gets so hot that it warps your Knex. :-)

Wait, you seriously know Tornado? Like you've met him in person?

Funny that you say this, because I added you a few days ago. :-P You just haven't come online yet.

I like to call it Larry, but it goes by a pile of names. I'm sure there's an instructable on how to make it someplace.

Nice! I LOVE the element on the lower right. :-)

lol i fell for the mirror trick i actually thought it went further back!

i like your ball machine esecially the mirror effect. That was funny when all your pieces was in the tub. Also I just finished my first ball machine.

I love it! :-) The micro loops are my favorite part.

Thanks! I liked them too. Kinda ripped them off one of your older ball machines I think :-p

Haha, that would be Wipe Out. :-P Do the Knex pieces get wet in the shower?

Thats the one :-)

I never actually showered in that tub, we have a nicer shower that we use instead.

Nice music, and AMAZING ball machine.

looks great!, do you actually use that shower with it in there?

Nah, our other bathroom has a much nicer shower anyways, so we just use that.

haha! i figured that anyways, its the same way at my house, except the shower we dont use doesnt have knex in it :P