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About stepper motors controlling (help)

Discussion in 'Electronic Design' started by [email protected], Aug 29, 2007.

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  1. Guest

    I'm looking for the best way for stepper motor controlling: I tried to
    approximate the continuous space versus time curve, calculating the
    time intervals where space increase one but it requires square root
    and divisions that whould force me to choose a very fast
    microcontroller/dsp. I've looked for some commercial controller and
    I've seen that all of them have a cycle loop: seems like they don't
    control directly space; they instead update the speed at any control
    cycle approximating so the speed versus time curve: it is correct ?

    Thanks in advance.

    Simone Navari.
  2. Rich Grise

    Rich Grise Guest

    You shouldn't have to calculate anything on the fly. Sit down at the
    bench with a representative motor and some instruments, like tach,
    torque measuring device (I used a spring scale on a crank arm), and
    so on, a simple controller with knobs, and characterize your motor.

    Now that you have all your figures, you can make a LUT.

    Good Luck!
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