Falling Arm Lift, a Knex Ball Machine Lift

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Introduction: Falling Arm Lift, a Knex Ball Machine Lift

About: 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 hope you like my stuff, and like always comment, rate &amp...
Hello fellow knexers!

Finally, after a long time, I managed to find some time for this ball machine lift.
The Falling Arm Lift was first seen in my knex ball machine Paradox.
This is the second new lift in a series of 4 new lifts, all from Paradox.
It's a nice lift, with an average piece count for it's height.

However, this lift doesn't always perform very well. The version I used in Paradox worked at 99%, but the second version I made only worked at, let's say, about 70%.
I want to be honest and tell this to you before you start building.
But why making instructions if the lift doesn't work very well?
1) Sometimes it does work, so you can always try.
2) Some knexers requested instructions for this lift, so I'm sure some of you are going to build it.
3) Lifts can always be modified.

If you build this lift, read every image note! It will help you a lot!
If you have any problems or questions, feel free to comment or PM me.

I hope you like it, and thanks for watching / building!

~Sandroknexmaster~

video:

Step 1: Piece Count

If you want you can count the pieces before you start building.
Here is a list with all pieces included in this lift, named by their original color:

RODS:

Green: 92
White: 31
Blue: 71
Yellow: 69
Red: 61
Tan: 1
Grey: 35

Total rods: 360

CONNECTORS:

Dark-grey: 17
Light-grey: 11
Orange: 35
Red: 39
Green: 10
Yellow: 68
White: 14
Purple: 74
Blue: 17

Total connectors: 285

OTHER:

Blue spacer: 62
Silver spacer: 56
Tan clip: 19
Y-clip: 10
Blue hinge: 1
Black hinge: 1
Small blue gear: 5
Medium red gear: 5
Big yellow gear: 2
Medium hub: 1
Medium tire: 1
Motor: 1
Rubber band: 1
String: 1 meter

Total other: 166


Grand Total: 811

Step 2: Arm Catcher

This part will "catch" the arm.

Step 3: Entrance

Here the balls will wait to enter the arm.

Step 4: Combining Arm Catcher and Entrance + Adding String

First we'll combine the previous steps, after that we'll add the string.

Step 5: Connection Support

This is the easiest step, it will connect the entrance and arm catcher with the rest of the lift.

Step 6: Gears

The gears are very necessary to move the arm.

Step 7: Crank

This is the crank, it will pull the arm to the top and then let it fall down.

Step 8: Motor Section

This part contains the motor and the rest of the gears.

Step 9: Tower Support

Time to make some height!

Step 10: Exit

Here the ball will exit the lift.

Step 11: The Arm

The arm carries the ball to the top of the lift. This is the very last step!

Step 12: Finished!

Congratulations, your Falling Arm Lift is finished!
Always slide the switch of the motor to the left!

You can always send me a picture when you've built this lift so I can add it to this step.

Thanks for building / watching!

~Sandroknexmaster~

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52 Comments

What about it specifically doesn't always work?

4 replies

Mainly the entrance mechanism. It doesn't always work correclty, sometimes the ball didn't roll to the basket.

oh. It's still a REALLY cool lift! :)

nice lift! i really like it, im going to build some of your lift as soon as possible, but one question: does this work with the white-black balls?

2 replies

Thanks!
I didn't try it, but it should work with blackwhite balls ;)

Oh I forgot to say that you probably have to mod the exit :P

Yes, you've done it! It looks wondrously complex and beautifully mechanical. Good job. :p

1 reply

Nice! I've probably said this before, but my favorite part is the second joint. :-)

4 replies

You're welcome, also, that crank is pretty thick. :-P

Yes it has to be, I tried to make it smaller (wich is better), but this was the best way to do it :p

Yeah, it makes it nice and strong.

No prob! Commented, watched video, slapped by ingenuity, Complimented.
I need to read and watch video first than comment... in that order.XD