Instructables

Step 24: Parallel Arm Lift

This lift was originally built in my unfinished ball machine (skip to 4:47 on the video to see the lift). It uses arms that are parallel, and they are connected in the back. Balls roll down the arm into a claw, and, when the arms get to the top, the ball goes through a flap in the bottom of the next arm. My version didn't work very well, since there was a lot of strain when it was fully loaded with balls. It was also pretty slow. 

Sorunome rebuilt it from the video and modified it to make instructions, shown in picture 6.