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  1. #1
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    Question Open Source Spindle Control

    I am wondering if there are any open source schematics or board layouts for spindle speed controllers? I would like to be able to adjust the rpm of my 110 vac spindle (1/2" router). Anything out there? It would be even better if I can set the rpm through Mach 3.

    Thanks in advance!
    Rob
    Necessity is the mother of all invention (unknown)
    My club home page www.lhmac.org

  2. #2
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    anyone???
    Necessity is the mother of all invention (unknown)
    My club home page www.lhmac.org

  3. #3
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    I found this online, not sure if it would be a good start...
    AC Motor Speed Controller
    Necessity is the mother of all invention (unknown)
    My club home page www.lhmac.org

  4. #4
    Community Moderator Al_The_Man's Avatar
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    What type of motor? Universal?
    Here is one, but not open source.
    http://www.cnczone.com/forums/diy-cn...ter_speed.html
    For accurate control, a Universal motor requires feedback of some kind.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  5. #5
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    The motor is a regular wood router so I would assume it is a universal.

    I saw the super pid but was looking at making something myself and for less cash.
    Necessity is the mother of all invention (unknown)
    My club home page www.lhmac.org

  6. #6
    Community Moderator Al_The_Man's Avatar
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    The link you show is the basis for most router built in speed controls, the problem with a Universal motor it has poor speed regulation with load unless feedback is used.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  7. #7
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    I have sent an E-mail to the Mfg. to get more information about the motor.
    Necessity is the mother of all invention (unknown)
    My club home page www.lhmac.org

  8. #8
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    Most of the routers now come with internal speed controllers, and they do a decent enough job if you don't need top-level performance. If you are after low-cost that would be the way to go.

    The Colt routers use a simple current feedback that gives a decent speed control. The Hitachi M12VC comes with an internal closed loop control that works better still.

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