Thread: Servo motor

  1. #1
    Looking to replace a servo motor, no longer available :- Matador DCM3D 0.6hp/0.5Kw. [URL="http://www.microcontechnologies.com/Matador%20DC%20servo%20motor.htm"]
    Can adapt things mechanically if I can find a source of something similar. Any advice on sourcing appreciated.

  2. #2
    m_c's Avatar
    Lives in East Lothian, United Kingdom. Last Activity: 1 Day Ago Has been a member for 9-10 years. Has a total post count of 2,147. Received thanks 236 times, giving thanks to others 5 times.
    Do you need the tacho?
    A motor with a tacho is going to be the expensive bit, as they're getting pretty rare/specialist now.

    Depending on how it's controlled/integrated, it may be cheaper to fit a new drive and motor combination.
    Avoiding the rubbish customer service from AluminiumWarehouse since July '13.

  3. #3
    Sorted by a kind colleague. Thanks.

  4. #4
    m_c - Spoke too soon. Donor motor "Kaput"
    Would you be kind enough to advise further on "suitable drive and motor combination" please? Lathe is simply controlled by Mach3 and spindle is normal toothed belt arrangement.

  5. #5
    m_c's Avatar
    Lives in East Lothian, United Kingdom. Last Activity: 1 Day Ago Has been a member for 9-10 years. Has a total post count of 2,147. Received thanks 236 times, giving thanks to others 5 times.
    It all depends on how it's controlled, and how much space you have.

    A modern similarly powered brushless motor is likely to be physically smaller, but may not spin as fast, as some of the old DC motors could spin fast.
    However at the cheaper end of the scale, some of the Chinese servo motor/drive combinations on Aliexpress may work. But I'm not sure if all the drives are capable of +/-10V/Analogue speed control (I'm assuming you're existing setup is essentially using a DC servo and amplifier via a basic open loop analogue output).
    I know Jazz and DaveK have used them.
    You could change to using step/dir for the spindle, however that depends on what controller you're using, as not all controllers support that option reliably.
    Avoiding the rubbish customer service from AluminiumWarehouse since July '13.

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