Introduction: How to Build Project Enigma Minor

Picture of How to Build Project Enigma Minor

Here's my newest project - Enigma Minor. It's compact, has a lot of paths (5!) and looks cool. The name was suggested in my question "how shall I call my new K'nex ball machine" It looks like project Splat, but I modified it. My add - ons on Splat:

- 1 extra path: Freefall
- 2 kinds of path separators: the classic version and the Infinity-Switch
- 1 new element, that I've designed: the dual ball element. (on path 4 and 5)
- less pieces!

Good luck with building!

Step 1: Pieces

Picture of Pieces

Here's the piece count!

- Green: 244
- White: 138
- Blue: 289
- Yellow: 64
- Red: 1
- Grey: 9

- Grey 1 – way: 71
- Grey 2 – way: 9
- Orange 2 – way: 25
- Red 3 – way: 144
- Green 4 – way: 29
- Purple 4 – way: 106
- Yellow 5 – way: 137
- Blue 7 – way: 51
- White 8 – way: 35

- Blue: 50
- Gray: 37

- Blue clip: 4
- Tan clip: 4
- Y – clip: 26
- Blue hinge: 4
- Black hinge: 4
- Red gear: 6
- Chain: 46
- Battery motor with short lead: 1
- Original K’nex balls: 2 or 3

Total: 1537 pieces.

Step 2: Base

Picture of Base

Let's start building! In this step, you'll make the base and the bottom gear. Good luck again!

Step 3: Receivers

Picture of Receivers

A receiver's a path that brings a ball back to the lift. In this step you'll make them. Look carefully to the amount of spacers and where Y - clips are placed!

Step 4: Spiral-Bottom

Picture of Spiral-Bottom

Here's where you'll start building the Spiral. In the middle of the Spiral's the freefall. You'll also make that part yet. Look again carefully to the amount of spacers.

Step 5: Path 4 and 5

Picture of Path 4 and 5

Now you'll make 3 elements at once; the new element, the switchback and the maze. It's a lot of work, so start with it!

Step 6: Spinner

Picture of Spinner

This is the Spinner, a well - known element. This could be painful for your fingers, so be careful. 

Step 7: Spiral-Top

Picture of Spiral-Top

Again a part of the spiral. These 2 elements (spiral and freefall) are the last elements you're going to make. Make sure to check the last picture. It includes a few changes to the rest of the pictures, if you don't change it it wan't work!

Step 8: Top - Left

Picture of Top - Left

Now you'll make the infinity-switch and a path separator. Good luck with 'em!

Step 9: Top - Right

Picture of Top - Right

This part includes 2 path separators. Look carefully to the connection points with the other parts!

Step 10: Motor-house

Picture of Motor-house

You're almost done! Just make the motor-house, and after that the chain.

Step 11: Chain Lift

Picture of Chain Lift

Last part! Make 2 sets of 15 chains, and one of 16, with at the end a chain-claw.

Step 12: Finished!

Picture of Finished!

You're done! If you're maze is stopping the balls, use gray connectors to stop the maze from going up. Thanks to tardis fan for this.

Have fun watching or changing it! Please give me pictures of your finished model, I'll add them to this step.



knex akbar (author)2014-03-10

are you still alive? please make more ball machines!! :)

MisterBukweet (author)2013-05-19

I'm about to install the chain right now... after spending several hours on this project, the only thing I can find bad to say is.... You must have the tiniest little girl hands..... it was tough to get into many of the places to make connections.... I has been a much fun build and I can't wait to see it in action.... I'll be sure to send you a pic... thank you for a nice project

OZKNEX22 (author)2013-01-24

cool i mite build later or when i have time

~Meme~ (author)2012-10-04

Are all the cogs needed? I only have 3.

~Meme~ (author)2012-10-04

Are all the cogs needed? I only have 3.

guitarshredder123 (author)2012-08-15

nice, with instructions?

RNB (author)guitarshredder1232012-08-15

Yup :D

guitarshredder123 (author)RNB2012-08-15

ok i'm making a ball machine soon first i need to take appart al my knex creations

Crumble (author)2011-05-25

how far are you into the enigma major?

RNB (author)Crumble2011-05-25

I started designing. I've 3 new lifts in mind, I'll go build it within a few weeks.

guitarshredder123 (author)RNB2012-08-15

when is it done?

Orangepanda (author)2012-02-11

hey RNB this ball machine is awesome!!!!!!!
this is going to be my first ball ive built so thks for that!
can i keep u updated on how im going because ive never made one before!
thks if i can

RNB (author)Orangepanda2012-06-16

Sorry for the late reply! How far are you?

CassisDude98 (author)2011-07-15

Ik ben trots op Nederland door jouw SUPERRRRRRRRR ballenbaan!!!


RNB (author)CassisDude982011-07-15

Bedankt! Omdat deze baan zo'n succes is, heb ik besloten om door te gaan met de 'Enigma's'. Ik ben nu een gigantische baan aan het bouwen die Enigma Major heet, later komt er nog een Enigma Micro

CassisDude98 (author)RNB2011-07-16

Eigenlijk zou je ook instructies moeten moeten maken voor de Enigma Micro
(hoeveel stukjes gaat die in beslag nemen?)

Alvast bedankt!!!

RNB (author)CassisDude982011-07-16

Enigma Micro: Nog geen enkel idee :-P. Eerst bouw ik de Major, later komt Micro nog.

guitarshredder123 (author)RNB2012-05-18

waneer komt de major

RNB (author)guitarshredder1232012-05-18

Ooit hopelijk. Ben nog steeds niet gestart :(

guitarshredder123 (author)RNB2012-05-18

maak dan een micro,dat lukt vast binnen 2 weken ;)

knexman32 (author)2012-02-18


knexman32 (author)2011-11-08


Zeethesquirrel (author)2011-09-17

EPIC imma build it if i have enough blue rods
god i hope i have enough

Barfopotamus (author)2011-07-12

I just finished the machine (pretty cool, by the way) and everything works but the Spinner. For some reason, the ball seems to fall out a fraction of a second too soon, landing on the track below. Then its momentum carries it in the direction it's supposed to go, however, the Spinner, which is still spinning at high speed, stops the ball and causes it to go backwards off the track. Is the Spinner supposed to carry the ball all the way down until it starts to go back up, or is the ball supposed to fall out but then roll through without the Spinner disturbing it?

RNB (author)Barfopotamus2011-07-13

The Spinner is supposed to disturb the rolling. Still, the spinner is spinning in the same direction as the ball goes, and it should work. If it keeps giving problems, add an extra fence at the back of the track.

Barfopotamus (author)RNB2011-07-22

I fixed it by replacing the red connectors and y-clips with gray connectors so that the track was slanted.

Crumble (author)2011-03-05

if this is an enigma minor, then what is an enigma MAJOR?

RNB (author)Crumble2011-03-16

Thanks for the name! I'm gonna build an big ball machine soon, do you mind if I call it Enigma Major?

Sorunome (author)RNB2011-03-22

Can i see then plz on skype, when you started?

RNB (author)Sorunome2011-03-26

Just started, building a new lift as start... (tell ya on skype!)

Sorunome (author)RNB2011-03-26

awsome! :) :) :)

Crumble (author)RNB2011-03-18

Nope, go ahead, i look forward to seeing that :P

cool knex13 (author)2011-02-11

looks relly good!



RNB (author)cool knex132011-03-16

Make it, and gimme pics of it, I'll add them to the last step!

cool knex13 (author)RNB2011-03-17

well....... Later on but I will make it.

knexlego (author)2011-03-14

is it the big chain not the small

RNB (author)knexlego2011-03-14

Big one.

k-n-e-x(leaved ibls) (author)2011-02-26

i made it and modified it so you can use only one ball

Sorunome (author)2011-02-17

what is the coaster in the background of the first pic?

RNB (author)Sorunome2011-02-17

That's the DoubleDare Racing Coaster

Sorunome (author)RNB2011-02-18

is that a standart set?

RNB (author)Sorunome2011-02-18


bosniaguy (author)2011-02-16

got a video?

RNB (author)bosniaguy2011-02-16

Nope, I'm sorry. My cam sucks at taking vids. When I get a better cam I might rebuild it to film it though.

Zombiekiller-93 (author)2011-01-11

Excellent Ball Machine 10/10 - I'm defanitly building this

RNB (author)Zombiekiller-932011-01-11

Thanks! Gimme pictures when done, I'll add them to the last step :-)

tardis fan (author)2011-01-03

Nice job! I'm going to try to make this soon.

RNB (author)tardis fan2011-01-03

Cool! Gimme a picture when it's finished, I'll add it to the last step!

tardis fan (author)RNB2011-01-09

Here are some pictures.
This ball machine is great! I'm glad I spent the time making it. I made a few changes (such as the motor) but didn't change the design.
I also added grey connectors on the maze part, which used to stop the ball.

RNB (author)tardis fan2011-01-09

Thanks! I added your first 2 pictures to the last step, and some text about the gray connectors. Have fun watching it or changing it!

About This Instructable




Bio: Hi! I'm Ruben, better known as RNB. I'm a student Mechanical Engineering and hence like to build contraptions related to that. I mostly ... More »
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