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What is a "3V" stepper?

Discussion in 'CNC Mills/Routers' started by miaohaha, Jun 13, 2024.

  1. miaohaha

    miaohaha New
    Builder

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    [​IMG]

    I'm trying to wire up a 4th axis to a Blackbox 32. I bought this cheap 4th axis unit and it has a stepper that says "3.0V" "1.5A". Which one is it? Is the *real* limit 3.0V or 1.5A?

    Does the Blackbox stepper outputs behave like a voltage source at 24V or like a current source at X amps? Can I use this motor or should I swap it out for a different NEMA17?
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    Ours are 3v 1.7a.
    Stepper driver controls voltage. Might run a little hotter than our motor. Turn current all the way down. Minimum is 1.2A
     
    David the swarfer likes this.

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