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I really want to make one of these:

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  • I really want to make one of these:

    I've gotta find plans for this "Cup and Balls Robot".
    It would be so cool, if it was made out of Brass, Aluminum, Stainless, Copper, Bronze, Steel, Etc.
    Check it out:
    Cup and Balls robot

  • #2
    How the heck does that work? I’m thinking there has got to be 2 or 3 balls and some deal to hold them in the cup. I want one just to rip into it and figure out what the heck makes it tick . . . my Mom always complained that even as a little kid I only wanted toys so I could take them apart.



    EDIT: Oh . . . I think I have it! Little magnet in each cup and a strong magnet under the table indexing to one ball at a time.
    Last edited by C_lazy_F_Guns; 08-02-2012, 03:55 AM.
    Anybody that thinks they know it all doesn’t even know enough to understand they know nothing!
    Andy

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    • #3
      Originally posted by C_lazy_F_Guns View Post
      EDIT: Oh . . . I think I have it! Little magnet in each cup and a strong magnet under the table indexing to one ball at a time.
      Think that's right, if you watch closely, you can see an arm or two do a sideways 'jerk' that would correspond to the under table magnet moving away from, or towards it

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      • #4
        That is an awesome automaton! If anyone finds plans please post the link.

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