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Thread: Stepper for Spindle Speed

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  1. 08-04-2007, 12:58 AM #1
    danielm
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    Exclamation Stepper for Spindle Speed

    Hi! I want to retrofit a Lathe with 2 axis movement. I want to use a stepper for the spindle movement (rotation). is it possible to make a continious movement at high speed (about 1300 RPM) on large times with and stepper?.
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  2. 08-04-2007, 02:29 AM #2
    Karl_T
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    A srepper would be a poor choice for the spindle. Steppers lose torque rapidly as speed is increased.

    I would reccomend a three phase motor and VFD. Inexpensive and much more capability.

    Karl
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  3. 08-04-2007, 02:34 AM #3
    Oldmanandhistoy
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    http://www.cnczone.com/forums/showth...+motor+spindle

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  4. 08-06-2007, 05:18 PM #4
    danielm
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    thanks for the response!! but I still have a question: it is possible to make a follow up of position and speed of the spindle with an encoder an a G-Rex or PMDX? a mind for threading.
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