K'nex Ball Machine Impossible

Introduction: K'nex Ball Machine Impossible

Hi there!

After 10 months of work, we're proud to present you our biggest k'nex ball machine: Impossible! This is by far our biggest k'nex ball machine ever, and has: 13 paths, 7 lifts divided into 2 networks. The whole thing runs on 2 motors, but a 3rd is necessary for an element. It is kind of confusing how the lifts are divided, so I'll tell you how it works. The first motor runs the top 2 arm lifts, and the wheel lift in network 1, and the chain lift in network 2. The second motor runs the first and second lift in network 2, the bottom arm lift in network 1, and the separator for network 1.

Some stats:

Height: 2.31 meters (7' 7'')

With and depth: 91 cm (3')

Number of pieces: 21,727

Number of balls: 20

Number of motors: 3

If you have any questions/comments, feel free to leave a comment or PM us.

This instructable is now an entry in the "Make it Move" contest. If you feel like it, would you vote for it? It would be much appreciated. :)

Thanks for watching/looking!

www139

Instructions for the new elements: https://www.instructables.com/id/knex-ball-machine-Impossible-elements/

Instructions for the separator: https://www.instructables.com/id/Compact-Separator-a-Knex-Ball-Machine-Separator/

Instructions for the first new lift: https://www.instructables.com/id/Short-Start-Arm-Lift-a-Knex-Ball-Machine-Lift/

Instructions for the second new lift: https://www.instructables.com/id/Spinning-Push-Lift-a-Knex-Ball-Machine-Lift/

Instructions for the third new lift: https://www.instructables.com/id/Versatile-Chainsaw-Lift-a-Knex-Ball-Machine-Lift/

Make it Move Contest 2016

Participated in the
Make it Move Contest 2016

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    27 Discussions

    0
    NeilRG
    NeilRG

    Question 5 months ago

    This is awesome I'm guessing you moved your project to the smaller space after construction . K'nex is more durable than I realized. Do you build the frame and then install the elements of the different paths? How do you plan how the various paths interweave in 3D space? Do you you design the elements and then work out how they need to be interconnected? Good luck going forward.

    0
    www139
    www139

    Reply 19 days ago

    Sorry for the late reply. Although it was difficult to work around the relatively small space, it was actually built there. Benefits of being built like a twig, I can fit in some pretty small places to build! I'm almost always tinkering with different elements and lifts, so I built the frame, installed some elements and then found ways to interconnect them. I don't always build a track from top to bottom. As far as a plan, I don't usually have a plan beyond "I'd like to use this, I wonder where I could put it", and as long as it works consistently I keep it.
    Thanks! :D

    0
    www139
    www139

    4 years ago

    Thanks!

    0
    FanPlastic
    FanPlastic

    Reply 4 years ago

    did you go through and reply to every single one of those comments?

    0
    www139
    www139

    Reply 4 years ago

    yes, but copy/pasted them. :P

    0
    The Knex Inventor
    The Knex Inventor

    4 years ago

    Nice ball machine! Favorited! :-)

    0
    www139
    www139

    Reply 4 years ago

    Thanks! And thanks!

    0
    www139
    www139

    Reply 4 years ago

    :D

    0
    www139
    www139

    Reply 4 years ago

    thanks, and thanks!

    0
    Gargamel-Knex
    Gargamel-Knex

    4 years ago

    Woaw Another big, nice machine!

    I've voted.

    0
    www139
    www139

    Reply 4 years ago

    Thanks! Thanks for the vote. :)

    0
    www139
    www139

    4 years ago

    Thanks!

    0
    www139
    www139

    4 years ago

    Thanks!

    0
    www139
    www139

    4 years ago

    Thanks!

    0
    FanPlastic
    FanPlastic

    4 years ago

    Voted! are they not doing the knex contest?

    0
    www139
    www139

    Reply 4 years ago

    Thanks! I don't think they are, but even if they are, it'll be later this year, meaning that we'll have enough time to enter some other projects. :)

    0
    FanPlastic
    FanPlastic

    Reply 4 years ago

    :^)