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
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Step 1: The Center Frame

This is where the lift will be located.

Step 2: The Wheel Side

This side will hold the wheel later on.

Step 3: 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

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

Step 8: 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.
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will it work with green motor
Knex4Life232 years ago
Great ball machine, I built it and I love it. Thanks!
Imma build it now
coolsonic455 years ago
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
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
ryry20114 years ago
what is the big knex thing in the back round
5 stars!
I made this a while ago but i can say you're very smart!
slithien4 years ago
 dont know to build this or immueble??? i know il build both!!
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
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.
rsbingham5 years ago
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.
randomocity5 years ago
Do u think u could take better quality pictures? 4 me it was kinda hard 2 understand at certain parts...
(removed by author or community request)
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)
theperson26 years ago
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...)
WHAT THE FU** THAT IS LIKE A BAJILLION PIECES i really need more knex. but sadly, i also need more money..............
Me, have a bajillion pieces? I doubt it. More like 7,500 for me. The Big Ball Factory comes with loads of both pieces.
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.
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.
Darth Trainman (author)  The KNex Weasel6 years ago
Psh... 2000+.
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?
look at i-am-canadians lift i recommend it
me to
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.
Darth Trainman (author)  The KNex Weasel6 years ago
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~5 years ago
really cool. i built it and theres no crap things about it. ill give you 5
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