Salvaged Steppers

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  • June 16, 2013 at 9:10 pm #4179
    curnow
    Member

    G’Day Gang,
    I am very interested in building a small cnc machine. I have salvaged a heap of steppers from large office type printer/copiers. They range in voltages and size but a lot of them are 24v DC 6 wire. Could I run these with the TinyG providing the motors are under the 2 odd amp current draw?

    Cheers
    Dennis

    June 16, 2013 at 9:22 pm #4180
    alden
    Member

    Pretty much any bipolar (4 wire) or unipolar (6 or 8 wire) motor that draws less than 2.5 amps will work.

    The rated voltage is mostly irrelevant as the stepper driver regulates the current regardless of the supply voltage. People get confused when the motor ratings says something like “3.5 volts”, but that just refers to the draw if current isn’t regulated.

    The quality of the motors – that’s the question – but you can experiment with that.

    Alden

    June 16, 2013 at 9:34 pm #4182
    curnow
    Member

    Thanks for the rapid reply.
    I have ordered a TinyG board so let the fun begin.
    Can’t wait for it to arrive now.
    Cheers
    Dennis

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