Introduction: Project BOX K'nex Ball Machine

Picture of Project BOX K'nex Ball Machine
My smallest Ball Machine to date. Also, this is my final tiny ball machine. From now on, I go bigger (no pun intended).


Red Rods: 3
Yellow Rods: 20
Blue Rods: 197
White Rods: 58
Green Rods: 100
Blue 3D Connectors:20
Purple 3D Connectors: 103
White 8-Slot Connectors: 39
Yellow 5-Slot Connectors: 56
Green 4-Slot Connectors: 6
Red 3-Slot Connectors: 19
Orange 2-Slot Connectors: 7
Gray 2-Slot Connectors: 1
Gray 1-Slot Connectors: 9
Tan/Brown/Orange Tabbed Connectors: 2
Motors: 1
Balls: 1
Blue Bearings: 7
Silver Bearings: 5
Gears: 4 Red
Chain Links: 35
Black Y Connectors: 2
Total: 695 Pieces

Step 1: The Center Frame

Picture of The Center Frame

This is where the lift will be located.

Step 2: The Wheel Side

Picture of The Wheel Side

This side will hold the wheel later on.

Step 3: The Other Side

Picture of The Other Side

This side will hold the other stuff.

Step 4: The Top Gear

Picture of The Top Gear

This part will support the chain.

Step 5: Mini Thisorthat

Picture of Mini Thisorthat

This part decides where the ball goes.

Step 6: The Micro Ramp

Picture of The Micro Ramp

This leads to the Wheel.

Step 7: The Wheel

Picture of The Wheel

This part spins. Build, take out a blue rod, then put in the Wheel. Replace blue rod.

Step 8: The Ramps

Picture of The Ramps

These two make the ball drop.

Step 9: The Chain

Picture of The Chain

This part has 35 Black chain links.

Step 10: Usage

Picture of Usage

Fix this part.

Add ball, Turn on.


Fulffy_Walrus (author)2012-09-11

will it work with green motor

Knex4Life23 (author)2012-07-24

Great ball machine, I built it and I love it. Thanks!

Zeethesquirrel (author)2011-09-17

Imma build it now

coolsonic45 (author)2009-12-06

is this big or small chain links beacus i only have small if so can u give me links to where to buy some big ones

ryry2011 (author)coolsonic452011-02-17

ebay or but get the standerd from knex those are the one you are looking for not the other ones the other ones are small

screamin serpent
you get 127 big chain links with it

ryry2011 (author)2011-01-30

what is the big knex thing in the back round

Lightning Thunder (author)2010-11-11

5 stars!

Lightning Thunder (author)2010-11-11


colton blake (author)2010-06-03

I made this a while ago but i can say you're very smart!

slithien (author)2010-05-22

 dont know to build this or immueble??? i know il build both!!

knex obsessed (author)2009-05-11

this is so cool, can you make this but as a bigger version pleaz also can someone help me as i can't rate

The whole point of it being small is that is supposed to be a small ball machine, what are you?

i didn't say it was small i was just askin if you could make it into a bigger version

Mr. Muggle (author)knex obsessed2009-09-23

If you want a bigger version, check out my ball machine, it also has a ferris wheel and two ramps, it's only bigger and a different lift system:

If he made it into a larger version it would defeat the point of it being small which is what it is meant to be. If you want to build a large ball machine, find an Instructable that actually shows how to build a large ball machine.

rsbingham (author)2009-08-04

I built this ball machine a few days ago. Every day I've added at least one more different path/element. My final addition, which I'm working on now, is a double helix lift. The basis, obviously, is the Project BOX Ball Machine.

randomocity (author)2009-07-11

Do u think u could take better quality pictures? 4 me it was kinda hard 2 understand at certain parts...

The Jamalam (author)2009-02-14

i would make some kind of inuendo here but I wont...

Can I?

if you must...

That's what she said. (sorry for the late joke, I didn't notice)

theperson2 (author)2008-06-21

zzgs how is it a fake? So its small Darth trainman is just trying to post someone for every on if they have 1000 or 10000 pieces so ha

I almost agree with you, except I don't think something with 103 purple connectors and 197 blue rods is something everyone with exactly 1000 pieces would have (except perhaps for me...I have 640-ish purple connectors and about 750 blue rods, but even then...)

grevious (author)The KNex Weasel2008-09-13

WHAT THE FU** THAT IS LIKE A BAJILLION PIECES i really need more knex. but sadly, i also need more money..............

The KNex Weasel (author)grevious2008-09-14

Me, have a bajillion pieces? I doubt it. More like 7,500 for me. The Big Ball Factory comes with loads of both pieces.

grevious (author)The KNex Weasel2008-09-16

but still 750 blue rods, i dont even think i have 100, or 75, the most i have is like 77 red rods. but thats about it. oh and about 145 yellow connectors.

The KNex Weasel (author)grevious2008-09-16

That's still quite a lot. You could build some cool ball machines with that amount of pieces. P.S. I now have almost 900 blue rods.

Psh... 2000+.

grevious (author)Darth Trainman2008-09-17

HOLY CR*P, how long have you been collecting? plus, HOLY CR*P YOU HAVE ALOT OF PIECES, you have more blue rods than i have pieces nearly, thats nucking futs. plus, i asked the knex weasel about lifts because i have no chains, u know any ideas?

dance1212 (author)grevious2008-10-19

look at i-am-canadians lift i recommend it

Jesus. (author)dance12122009-05-08

me to

grevious (author)dance12122008-10-19

ok then, ill try that out, i might make one sooner or later hopefully.

That's true, Trainman has about three times as many pieces as me.


grevious (author)The KNex Weasel2008-09-17

yeah i could, but some of the required pieces i need i dont have, plus i have no chains? any other ideas on lifting the ball upwards?

Thats a good set man...

I didn't know you were here.

~KGB~ (author)2009-05-06

really cool. i built it and theres no crap things about it. ill give you 5

Hiyadudez (author)2009-05-03

Sweet ball machine 5*s. And: 1. Is that your AWesome Vivisector in the background? 2. How high can u make a ball machine with 5782 peices of knex? 3. I Just bought 57 feet of orange track, can u show me how to make the loop you used in CHAOS? Thanks!

knexjay (author)2009-02-21


Tom Buckey (author)2008-10-19

also trianman can u plz plz plz do some more ballmachines with less than 45 chain links coz thts all i havand im sure lots of others will agree with me thanks

Yeah, But ball machines with 45 links are REALLY small.

i no as ive tryed but all my ball machines are absaloot poo an i need help i have no roller coaster or ball machine trak so just on more plz!!!!!!

KrazyKow (author)Tom Buckey2008-11-01

Could you please learn how to spell? It's really annoying Thanks.

The Jamalam (author)KrazyKow2009-02-14

You tell that chtspkr! lol

The Jamalam (author)2009-02-14

in the video is that your vivisector machine gun in the background?

grevious (author)2008-11-14

"1337 pursphekivs"
"leet perspectives"
i know chtspk =D

ILIKEPIE333 (author)2008-11-09

cool 5*s

Tom Buckey (author)2008-10-18

thanks darth trianman I've made my first ever ball machine. I've changed it a bit i swaped the elemnts with different ones ill update it on this site and sent u some pic to see wat u fink for a amatuar

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