Two Knex Ball Machine Elements

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Introduction: Two Knex Ball Machine Elements

okay so I have built 2 of these cool ball machine elements( spiral and stair).

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Step 1: Spiral


this is easy just follow the steps

Step 2: Stairs


this is a lot harder than the spiral

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    10 Comments

    are the blacks the same as yellows??????

    sweet man or knexmanB) is that called the tumbler?

    Nice ball machine elements! I even built it but i tore it down to do my other ball machine!!!! 5*

    thank you for all the subscribers

    I hope everyone built both of these

    What knex set do u get thu ball in?

    the spiral has been done before, but the other one is cool

    the spiral has been done before its in many many other ball machins alrdy and the BBF set

    cool now i can build it, it looks fun to build i can imagine me building it