Here are instructions for a small element that works really well.
It's called the "No-axle Arm Drop Element" because the moving arms don't have an axle, which creates a weird kind of movement when a ball enters the element.
Make sure to check out Step1 to see what special kind of piece you need to complete this build.
You can make this element longer or shorter if you want.
This element only works with the classic knex balls
Thanks for watching/building,
Step 1: Special Piece You Need:
You'll need 6 of those