Introduction: Knex Ball Machine: Paradox, Elements

Picture of Knex Ball Machine: Paradox, Elements

Hi everyone!

Here are the 13 new elements from my knex ball machine Paradox.
I tried to make the instructions as easy as possible to follow, and I hope I succeeded.
If you need more help or tips for your own ball machine, you can always comment or PM me.
Thanks for watching this guide and good luck with building!


Step 1: Simple Green Path

Picture of Simple Green Path

A simple element for warming up ;D

Step 2: Multi-clickers

Picture of Multi-clickers

Small wheels and vertical clickers in one. You can make it as high as you want.

Step 3: Easy Flipper

Picture of Easy Flipper

An easy flipper design,  like the title says.

Step 4: Wheel Path

Picture of Wheel Path

This is a nice element to use some of your small wheels.

Step 5: Leapfrog

Picture of Leapfrog

A pretty big element. The first ball enters and waits for the second ball, then they both fall down.

Step 6: Confusing Ferris Wheel

Picture of Confusing Ferris Wheel

Instead of a regular ferris wheel, this is a cool extra you can add. The orange spokes can be changed in every pattern you want, this is just a basic pattern to show the effect of the gears.

Step 7: Catch 'n Spin

Picture of Catch 'n Spin

An easy but handy element.

Step 8: Geared Double Ball Drop

Picture of Geared Double Ball Drop

A cool looking element, perfect to add in your ball machine. For this version the big green gear is needed, but if you dont have one you can modify it.

Step 9: Flat Cross-Tie Spiral

Picture of Flat Cross-Tie Spiral

This element works best with rollercoaster track, but you can also use orange tubes.

Step 10: Bended Trampoline

Picture of Bended Trampoline

A restyled rubber band trampoline with good looks.

Step 11: Simple Flipper

Picture of Simple Flipper

Simple flipper, like the title says.

Step 12: Spiral Clickers

Picture of Spiral Clickers

You can make the spiral as long as you want. This one is for a standard red rod.

Step 13: Double Arm Drop

Picture of Double Arm Drop

This element is originally invented by knexpert#10829476 and was first used in his ball machine ionization at 1:40 in the vid.
Here is my own version of that element.


augustuss (author)2015-08-20



You just made my 3000th comment :)

15knexLaz (author)2015-05-05


I also made a instructables account today. But I can't make a instructable, because

he constantly says I have to verify my emailadress, do you know what I have to do?

Verify your email adress :p If it doesn't work, I don't know. You can always ask for help in the forum.

www139 (author)2014-09-20

in step 8 it's spelled "modify" (constructive criticism) :P

sandroknexmaster (author)www1392014-09-21

Changed it, thanks :p

www139 (author)sandroknexmaster2014-09-21

ok! I'll delete the comment above (it's embarrassing right?)

sandroknexmaster (author)www1392014-09-23

Haha no problem, everyone makes mistakes, and English isn't my native language :p

Grasi (author)sandroknexmaster2014-11-28

Whats your real language?

sandroknexmaster (author)Grasi2014-11-30

Dutch :)

sandroknexmaster (author)2014-04-27


koolcoasterkid (author)2013-09-22

Sweet. Just wondering, did you make the confusing Ferris wheel before clockwork?

And about the ferris wheel, I already saw it before I built it, but I never saw the mechanic (Serious). So it's not a reinvented concept, but I figured out the gears myself.
Let's say that I semi-invented it ;)

Ah, ok. Well nice job on the elements. I like the one with all the small wheels as it uses some pieces that are rarely used in machines. I might use it for my machine.

Yes, I always have more than half my wheels left, so I tried to invent an element that uses many wheels, and it turned out great :p

Sorunome (author)2013-08-09

wait, i didn't comment here yet? O.O
This is cool :P

Haha, thanks ;D

Great job, my friend. Ingenuity shines through in these elements! :-)

Haha thanks :D

knexpert#10829476 (author)2013-07-19

Dude, that is so freaking cool!

Thanks! :p

knexpert#10829476 (author)2013-07-19

Oh my gosh, you used my element! This makes me feel so good inside:D

Haha no problem :p It looked good so I rebuild it from the vid, and offcourse I gave you credit for the whole concept.

Shadowman39 (author)2013-07-19

Nice elements! In step 4 picture 14 good job on making the wheels stay in place. :-P

Haha yes, but it was easier then I expected to keep them in place :D

Those are great bro. I kinda wish I was into ball machines.

It's never too late to start building ball machines ;)

Maybe not, but I would have NO idea as to where to start.

Same for me with guns ;)

Hmmmm... I would really like to see a gun from you. I bet you would be really awesome. BTW, I was wondering if you would make a guide that shows all the K'NEX guns that YOU have built, I would be really interested to see it.

I can always try! But first I have to finish instructions for new the lifts and path separators, I'm still busy with that. (and I'm going with vacation for 2 weeks, without knex)
BTW have you seen the question about Paradox in the description?

Oh, O.k, you do that, and I hope to see that guide from you soon. What question about paradox?

I'll probably start with building 1 gun, not a complete guide.
I mean the question in the description of this 'ible.

sandroknexmaster (author)2013-07-19

lol :D

dickheijboer (author)2013-07-19

Nice guide! I love step 7!

Thanks :D

nerfrocketeer (author)2013-07-19

Very cool... And useful! ;)

Thanks! :)

megustatrains (author)2013-07-18

EPIC parts :D

Thanks! =D

sandroknexmaster (author)2013-07-19

Yeah! Now I've reached my most important goal I my life! ;)

DarkOwlProductions (author)2013-07-18

Dude, you're the king of ball machines. Definitely voting once this entry is accepted. :D

A true honor to be called a king ^^
Thanks :D

You're welcome, and I stand by what I said: you definitely make the best ball machines. :3

That's a huge compliment, thanks :D

sandroknexmaster (author)2013-07-18

Thanks :)

hunter999 (author)2013-07-18


hunter999 (author)hunter9992013-07-18

Adding to my last comment, clear pictures making the so the elements can be redone. I like how much you have condensed the steps, good job! :D


hunter999 (author)2013-07-18

Wow man, you work fast! Awesome I favorited!

About This Instructable




Bio: Hey! I'm Sandroknexmaster. I like building with knex, especially ball machines. I live in Belgium. I speak Dutch, but also English and French. I ... More »
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