Shop OBEX P1 Docs P2 Docs Learn Events
Motion of eyes — Parallax Forums

Motion of eyes

ArchiverArchiver Posts: 46,084
edited 2000-10-13 07:23 in General Discussion
Hi
I now this is not really basic stamp related, but has anyone got any
information on setting up servomotors to control movements for eyes.
The eyes need to move in both vertically and horizontally. At the
moment i can't configure them to move them both simultaneously. any
ideas.
Thanks.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2000-10-12 03:35
    alan_correia@h... wrote:

    > Hi
    > I now this is not really basic stamp related, but has anyone got any
    > information on setting up servomotors to control movements for eyes.
    > The eyes need to move in both vertically and horizontally. At the
    > moment i can't configure them to move them both simultaneously. any
    > ideas.
    > Thanks.

    i did something similar for halloween, for the eyes i attached four
    lengths of nylon bass line at 90 degrees of each other around the
    circumference of the eyes, for a socket (this might be difficult if you
    don't have access to a machine shop or drill press of some kind) i got
    two pieces of delron round stock about 1/2 an inch in diameter, using a
    round end end mill with the same radius i milled a socket about 0.100"
    deep the flipped the piece and drilled and tapped some mounting holes,
    the socket mounted horizontally on a plate with the servos behind it and
    some guide post to run the fishing twine back to the servo horns, the
    tension on the fishing line kept the eyes in their sockets.
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-12 05:42
    Try the link below. This guy is into Animatronics and has some pages
    regarding your exacte question. No details, but a few pictures to get you
    going in the right direction. I myself will be using his idea.


    http://www.backinsf.com/j1432/animatronics/arvid.html

    Original Message
    From: <alan_correia@h...>
    To: <basicstamps@egroups.com>
    Sent: Wednesday, October 11, 2000 7:13 PM
    Subject: [noparse][[/noparse]basicstamps] Motion of eyes


    > Hi
    > I now this is not really basic stamp related, but has anyone got any
    > information on setting up servomotors to control movements for eyes.
    > The eyes need to move in both vertically and horizontally. At the
    > moment i can't configure them to move them both simultaneously. any
    > ideas.
    > Thanks.
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-12 17:04
    At 09:13 PM 10/11/00 , you wrote:
    >Hi
    >I now this is not really basic stamp related, but has anyone got any
    >information on setting up servomotors to control movements for eyes.
    >The eyes need to move in both vertically and horizontally. At the
    >moment i can't configure them to move them both simultaneously. any
    >ideas.
    >Thanks.

    Consider using the mechanical principal of an old XY joystick. Replace the
    pots with servos, remove the joystick handle leaving only the pivoting ball
    ( the eyeball ). Of course you'll need to scale up the idea to fit your
    project,
    but I think the basic idea should work. Good luck.

    Greg Hensley
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-13 07:23
    If you happen to have a couple of old joysticks lying around, they have
    the mechanics you need to do this. (if you don't, check out the online
    surplus arena, or even buy a couple of cheap ones at best-buy...) Note,
    these have to be joysticks that move smoothly over both axis. the
    original atari joysticks would not work for this.

    Here's how it works: you open the joystick, inside, you'll see to
    potentiometers. you remove the pots, and connect the output of your
    servos to where the pots hooked up the mechanical assembly. now if you
    move one of the servos, the joystick should move in one of the two axis.
    you place your 'eye' where the handle hooks up the assembly.

    If you need better detail, please ask. i can better explain with more
    sleep, or more caffine.

    joshua

    Excerpts from Stamp_List: 12-Oct-100 [noparse][[/noparse]basicstamps] Motion of eyes by
    alan_correia@h...
    > I now this is not really basic stamp related, but has anyone got any
    > information on setting up servomotors to control movements for eyes.
    > The eyes need to move in both vertically and horizontally. At the
    > moment i can't configure them to move them both simultaneously. any
    > ideas.
Sign In or Register to comment.