With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share what you made with text, photos, video, and files
gather your favorite instructables together
This is a KNEX arm lift I made that easily brings the balls up to good height. This is my first Instructable I've made on how to build something huge....
Here's how to build the first side of the main tower, kind of simple. Be sure to look at the close-ups.
Here's the other side of the main tower. Be sure to look at the close-ups once more.
Now, get the stuff you built in Steps 1 & 2 and put them together as shown.
This is what the balls will roll on to be picked up by the arms.
This automatically rotates the arms around and around. REMEMBER: You don't have to use the Battery-Powered Motor I used. You can use a different motor...
Here are the two arms that'll pick up the balls.
Now, take the stuff you built from Steps 4-6 and look closely at how to attach these three things to the tower.
This is what the balls will land on after the arms bring the balls to their summit.
Now, attach the exit track to the tower, as shown.
The dispenser starts out the thingy that dispenses the balls one by one so 2+ balls aren't on the Ark at once.
This is the extra pathing that will be added to the Ark and is needed support to the dispenser.
This is the motor part that will help to automatically dispense the balls one by one. Pretty simple.
Now, take what you built from Steps 10-12 and see how to put all this on the tower.
Congratulations! You now have your own, yet awesome arm lift. Now, just load some balls into the dispenser, turn on the motors in the correct directio...
We have a be nice comment policy. Please be positive and constructive.
Connected Arm Lift, Sandroknexmaster's knex lift.by knex dude 2000
[INSTRUCTIONS]: K'nex ballmachine Limoniumby Gargamel-Knex
guide to most commonly used knex ball machine liftsby GeekBeam
The Official Guide to Knex Ball Machine Liftsby Shadowman39
knex jump arm lift.by Thibault Art
My first knex ballmachine delfinoby jameshond
Center Arm Lift, a knex ball machine liftby sandroknexmaster
knex ballamchine liberty city (upate)by jameshond
Spinning Freefall Lift, a knex ball machine liftby sandroknexmaster
my first knex ballmachine delfino update!by jameshond
Download our new apps for iOS, Android and Windows 8!
© 2015 Autodesk, Inc.
By clicking "Create Account" you are indicating that you have read and agree to the Terms of service.
Already a member? Login »
Enter the email associated with your account and we will send you your username and a temporary password.
Not a member? Sign Up »