Knex Circle Ball machine

Well, here is a small ball machine, with a twist - No lift!

What?! No lift? How the heck does that work?

Well, it works like this. The track is a smooth flat circle, sitting on the base. The base has four "Arms" that stick out, and at the end of each one is a mechanism that makes a rod go up and down. These uppy-downy rods connect to the circular track and cause it to ossilate in such a way that the ball rolls around in a circle. Watch the video to make sense of it all.

Hope you like it!

Step 1: Piece list

Here's the piece list.

Rods
Green - 180
White - 64
Blue - 162
Yellow - 80
Red - 12

Connectors
Dark Grey - 4
Light Grey - 16
Red - 40
Green - 8
Yellow - 144
White - 12
Orange - 9
Purple - 137
Blue - 20

Other
Tan Clip - 10
Silver Spacer - 72
Blue Spacer - 38
Hinges - 4
Ball Socket - 1
Ball Joint - 1
Red Gear - 4
Yellow Gear (large) - 2
Blue Gear (tiny) - 1
One motor

Got those? Lets get cracking.

Comments

[www139]

oh my!!!!
talk about enginering!!!

[JonnyBGood]

Awesome machine! Are you a hypnotist by chance? because this thing is very amusing and hard not to watch. I modified mine with second track on top of the first one for even more fun.

[I_am_Canadian]

Thanks, and that sounds awesome! Do you have a photo?

[JonnyBGood]

Yep. Just took it hopefully it's visible through my mess!

[I_am_Canadian]

Thats awesome!! It would be so sweet to have like 20 stacked on each other :-p

Thanks so much for the photo!

[JonnyBGood]

Twenty would be cool if I had enough knex. I might manage 3 at most. =) No problem I love using my camera.

[viniciusmacedo]

It looks wonderful, but it doesn't work properly...

[I_am_Canadian]

Could I help you troubleshoot?

[KGuy]

Great job!!!! I might modify-changing the motor pack with a standard one (mine broke).

[I_am_Canadian]

Nice, well done! Thanks for building!

[natebman]

just got done building it and i have to say it is awesome. modified mine a little to run with a hand crank instead of a motor, but thnks for the great build

[I_am_Canadian]

Sweet, thank you so much! I'd really love to see the crank you made, do you have any photos?

Thanks again!

[natebman]

here is the picture of the crank and the picture of my completed ball machine

[I_am_Canadian]

Man, that looks fantastic! I really like the rails you added. Very impressive!

[instructables is cool]

[Removed by the FBI]


Just kidding! IT'S AWESOME!!!

[KNEX-pert]

Amazing! It's amazing how you were able to make it function that way. Great job!

[I_am_Canadian]

Thank you!

[KNEX-pert]

You're welcome!

[Zeethesquirrel]

Excellent job I built it in sometime from 1-3 hours Its really cool and kinda relaxing actually REALLY relaxing I really don't know why.

[I_am_Canadian]

Awesome! Thanks very much!

[jimopertrat]

i built it!!!=) so cool!

[I_am_Canadian]

Right on! Thanks!

[mdman10]

u know, for the track u could just use the already built tracks and put them in a circle. thats what im doing because i donnt have enough knex.

[I_am_Canadian]

Go for it! I'm sure there are alternatives.

[mdman10]

o it might be too small

[jake scythe]

sorry a lot not a loud

[I_am_Canadian]

How so?

[jake scythe]

the strucure could be a bit diffrent but keep stability and the engine could be not as complex

[I_am_Canadian]

I'd be very impressed if you could simplify the motor, and any reduction of the structure would start to detrimentally affect its stability.

In my opinion.

[bjarne96]

the yellow bar that goes up and down that you can replace a red bar.

[I_am_Canadian]

No you can't, sorry.

[Jesus.]

i....................need..............................yellow.....................................gears!!!!!!!!!

[I_am_Canadian]

You can buy them off K'nex.com relatively cheaply.

[Jesus.]

Sorry for the late reply. Yeah I know, But I'm saving my money.

[I_am_Canadian]

You only need to spend 5 bucks, that shouldn't take long :-p

[Jesus.]

No I frased it wrong, I'm saving my money for somthing else.

[dnmonsen]

for what

[Jesus.]

I think I was saving for my computer then.

[bjarne96]

on ebay.com have you knex and the yellow gear

[jake scythe]

could be a loud simpler