Introduction: My K'nex Ball Machine Zippy Zoom (contest)
Hi everyone this was my first ball machine and i thought i would enter it I was 12 when i bilt it and edited the video but sadly i didn't take any pictures. I hope you enjoy and would appreciate your vote.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Participated in the