Knex Archimedes Screw (knex Ball Machine Element)

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Introduction: Knex Archimedes Screw (knex Ball Machine Element)

this is a knex ball machine element

as the ball passes the archimedes screw turns

Step 1: The Supports

make these

Step 2: The Path

make these



Step 3: The Archimedes Screw

make these

connect the green rods to the yellow/gray connectors

Step 4: Assembly


Step 5: Congratulations

you cant make this higher because its not very sturdy
if you want to make it higher try to make the archimedes screw sturdy

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    9 Comments

    when the ball slides down the path that blue thing turns

    i had the same dising (little difrent) in my knex crane and that crain is like 25 years old :)

    I saw this on you tube but it was a little different

    you may not know this but that has been used by the knex company but this can be used as a lift:-)

    Nice design.  Do you have pictures or video of it in operation (i.e., lifting balls)?

    I'm not sure that "new" is entirely accurate, though it may very well be new to you.
    K'nex has it in lesson 192 of their Teachers' Guides.  It's also included in the K'nex "Exploring Machines" schools kit.  And there's even a You Tube video of someone else's design.

    cool