Knex Ball Machine Lift: Endless Arm Lift

Introduction: Knex Ball Machine Lift: Endless Arm Lift

About: Hey everyone. I'm Thibault Art and my biggest hobby is to build huge machines in K'nex. I like also to draw a lot and take care of my corn snake. On this page you will find K'nex ball machines, K'nex elements,ā€¦

Hey everyone,

Here are instructions for the final lift that was featured in my knex ball machine ECLIPSE.

If you're looking fore a very reliable lift that you can make as long as you want, this is the lift you need! It works 99,9% of the time when instructions are carefully followed. No rare or special pieces are needed for this lift and it's really easy to build.

I just want to say, if you want to make this lift a lot longer, I recommend you to install a second 12V motor on top of the lift.

The only disadvantage on this lift is the dispenser. The dispenser is only capable of handling 3 knex balls at a time. If there are 4 or more knex balls waiting to be dispensed, it could cause damage to the lift.

If there are any complains, problems or questions, feel free to tell me in the comments below or pm me.

Thanks for watching/ building.

Thibault Art.

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Step 22: Important Step:

Make sure when the arms are perfectly vertical that the dispenser is exactly in this position.

Step 23: Go Ahead and Try It Out!

2 People Made This Project!


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7 months ago

Max Pidgeon made the endless arm lift without the dispenser. would it still cause damage to the lift even if you still had the dispenser not there? BTW the video link is here He simply added a guardrail and it looked like it worked perfectly fine. Please answer as soon as you can.


Question 1 year ago

Can you easily modify the large yellow gears with different gears? like red or yellow? I only have two of the large yellow gears ( one yellow, one black). I just wanted to ask you this so it won't make much of a big deal. Also, I'll be making my K'nex ball machine after I come back from Teen camp since I have to do a lot of preparing. BTW, this arm's the best one of them all (the One from the exception since it adds lots of complexity to it. Thanks -James

Thibault Art
Thibault Art

Answer 1 year ago

You can use the medium and small knex gears instead of the big yellow gears no problem.


5 years ago

great fun to build first photo the baby and the monster at the sided


5 years ago

This is pretty cool! Lift four is the best, because it seem impossible.