Hobbywing ESC / motor RC

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  • Mjolinor
    V.I.P. VIC
    • Jan 2009
    • 1093

    #1

    Hobbywing ESC / motor RC

    I just got one of these:

    http://www.ebay.co.uk/itm/291007924670

    It's an ebay return from one of the Chinese sellers.

    I was thinking about using it in my CNC router as a spindle motor but can't figure out how much voltage and current the motor needs. My PSU is only 32 amp at 12 volts and it may fry I reckon, this motor has really thick wires, capable of much more than 32 amps and the ESC is good for 120 amps.

    Can anyone explain to me how to work it out, all the specs on the net that I can find have no mention of it other than the "4000kv"

    Maybe it's just easier to stick it back on ebay and stick with what I have.
  • elplicko
    DK Duf PT
    • Jul 2009
    • 321

    #2
    sigpicD.T.A. the safest way



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    • Mjolinor
      V.I.P. VIC
      • Jan 2009
      • 1093

      #3
      Originally posted by elplicko
      Have you no sheep to go and entertain?

      Comment

      • Meat-Head
        V.I.P. Member
        • Oct 2009
        • 32000

        #4
        Just get the correct battery pack and put ammeter in line, load it up measure.

        or fit run, if your power supply dips for anymore than a second it's a no .

        educated guess moment

        sigpicWas Banned For Being Certifiably Insane and Stupid

        Comment

        • Mjolinor
          V.I.P. VIC
          • Jan 2009
          • 1093

          #5
          Originally posted by Meat-Head
          Just get the correct battery pack and put ammeter in line, load it up measure.

          or fit run, if your power supply dips for anymore than a second it's a no .

          educated guess moment
          No cookie.

          Power drawn is not constant. It runs on three sine waves.
          There is no such thing as a correct battery pack unless you are familiar with such things, it is capable of running anything from two to six cells at 4 volts per cell but I want to run it from 12 volt DC. Voltage dips of of little consequence apart from them damaging the power supply. That all depends on the motor and I don't know about the motor.

          Why the hell the RC world decided to create their own specification procedure is beyond me. We have a perfectly acceptable set of SI units to define all things in the physical world so they go and invent a meaningless false one and neglect to tie it into real units or tie it in some bizarre ill defined fashion.
          Last edited by Mjolinor; 8 August, 2015, 11:19.

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          • Meat-Head
            V.I.P. Member
            • Oct 2009
            • 32000

            #6
            Slighly confused.

            so pretend your putting it in a boat ie you "can't recover it" if it breaks down/ runs out of power.

            say your machine takes two hours to do a part, then we assume your "boat" will be played with for 2 hours, what sized battery it need"?" (Money no object)

            other afterthought is look at the wire see if says "xx AWG" or "xx SWG" 1 amp is one amp no matter the voltage then you know the wire can hold max ?? Amps! Therefore can't draw anymore than that.

            sigpicWas Banned For Being Certifiably Insane and Stupid

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