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Stepper motor model (K-179 unipolar driver)

Discussion in 'Sensors and Actuators' started by mrel, Oct 19, 2010.

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  1. mrel


    Jul 2, 2008
    Have anybody in this forum put together the kit ( k179 stepper motor kit together).
    Question is after putting the kit together did the stepper motor kit K179 Work?
    I put together the kit and cannot get the motor to move ,the motor is unipolar motor.
    I notice the motor case get very hot and the motor Don't Move.
    Anybody know what can be wrong with the kit?

    I try two different motor i got both motor from all electronics
    (motor one) is CAT SMT-358 6-wire stepper motor 12 volts 8watt .
    (motor two) unipolar stepper CAT# SMT-108 made by mabuchi# PF35T-48L4 7 volts 350MA.
    Both motors don't move.
    One of the IRFZ44N mosfet did get very hot after awhile with power supply to the pc board.
    Thank any good infro.
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    If the motor gets hot then you may be using it with too high a voltage.

    If the mosfet gets very hot, check to ensure you haven't shorted the output somehow.

    Do you have a link to a description of the kit? (preferably with a circuit diagram)

    edit:there's lots more that could be wrong too -- just not enough info yet to be able to say exactly what

    edit2: there's lots of matching kits. Not sure if they're all the same.

    How many wires does your stepper motor have?
    Last edited: Oct 19, 2010
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