A Knex Ball Machine

tumbler-a knex ball machine stands at 4 feet tall 2 lift systems and 4 paths.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Be the First to Share


    • CNC Contest

      CNC Contest
    • Teacher Contest

      Teacher Contest
    • Maps Challenge

      Maps Challenge

    47 Discussions


    7 years ago on Introduction

    post instructions and it will be good for ya to get a sub from me


    8 years ago on Introduction

    Cool ball machine! I really like the element at 1:48

    What is that roller coaster I see in the background. :-)

    12 replies

    the element is a simple arm that the ball rolls into then the arm rotates to drop the ball below.and the roller coaster that is somthing my litle brother made.i went to your chanel and saw that your a christian so am I!

    oh sorry my brother all redy took his roller coaster down.=(.and my next project is a small knex walker instructable.and im working on another knex ball machine that should be done in about a month.