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Positioning System

Discussion in 'Electronic Basics' started by Cassie Carstens, Jun 7, 2004.

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  1. Hi
    I am in need of a movable bed for a small camera. The camera will be mounted
    on a 2-meter lens an the focus need to be ajusted via a servo system. Any
    help and or advice will be appreciated.


    Cassie Carstens
  2. To buy or build?

  3. Eric R Snow

    Eric R Snow Guest

    Are you gonna build this yourself? If so, there are many types of ball
    bearing slides available surplus for lots less than new. Couple that
    with a stepper motor with driver and leadscrew and you can have an
    accurate positioner cheap. I have seen the slide/stepper/screw combo
    for sale asa one unit for less than $50.00. and a stepper driver can
    be had for about $30.00. There is step and direction software free on
    the web and the chip which takes step and direction is about $8.00. It
    will drive directly small stepper motors.
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