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Damaged JRK from welding.

Discussion in 'Motor actuators and drivers' started by bodgy, Mar 15, 2017.

  1. bodgy

    bodgy Member

    Joined:
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    Location:
    Australia
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    86Coins
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    My Motion Simulator:
    2DOF, DC motor, JRK, Motion platform
    I decided to move my arm mounting points further up behind my shoulders. I disconnected my hall sensors and motors but forgot to disconnect the pedals (G27 pedals removed from housing, so metal on metal contact with the sim frame).

    I now have a permanent (well not quite, it does go yellow sometimes and when it does I can play for hours) red light on the JRK when power is connected. I tested continuity through the pedal frame to the pot wires and to the USB housing on the JRK (both pedals and JRK were still connected to the computer via USB when I was welding and there is indeed a path from frame to USB housings.

    Am I safe in assuming that it was my negligence here that killed the JRK and there is nothing else sinister going on? I have tested for shorts on motor wires and on the hall sensor wires and found nothing. The working JRK will operate the motor and pot on the non working side of the sim no problem.

    So, just order another JRK and learn from my mistake? Or is there an easy to replace component on the JRK that might have blown I could try replacing (like a cap?), I'm not capable replacing the chips or surface mount stuff.
    bodgy, Mar 15, 2017
    #1
  2. Nick Moxley

    Nick Moxley Well-Known Member

    Joined:
    Dec 13, 2013
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    Occupation:
    Owner/Operator- Moxleys Rantals
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    Winnipeg Manitoba Canada
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    17,054Coins
    Ratings:
    +2,504 / 30 / -2
    My Motion Simulator:
    2DOF, 3DOF, DC motor, JRK
    Not much to fix if you cant replace the main surface mount motor driver chip or the Voltage regulators. Are any of the chips burnt looking or Obvious signs of damage ?
    • Agree Agree x 1
    Nick Moxley, Mar 15, 2017
    #2
  3. Alexey

    Alexey Well-Known Member

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    My Motion Simulator:
    3DOF, DC motor, Arduino
    was it an AC welder?
    Alexey, Mar 16, 2017
    #3
  4. bodgy

    bodgy Member

    Joined:
    Jul 5, 2013
    Messages:
    61
    Location:
    Australia
    Balance:
    86Coins
    Ratings:
    +53 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, JRK, Motion platform
    Yeah an arc welder.
    I've ordered another controller, but am in contact with pololu to see if they have any ideas. I need a third for traction loss anyway.
    bodgy, Mar 16, 2017
    #4
  5. Nick Moxley

    Nick Moxley Well-Known Member

    Joined:
    Dec 13, 2013
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    Occupation:
    Owner/Operator- Moxleys Rantals
    Location:
    Winnipeg Manitoba Canada
    Balance:
    17,054Coins
    Ratings:
    +2,504 / 30 / -2
    My Motion Simulator:
    2DOF, 3DOF, DC motor, JRK

    darn Should have hit them up before ordering the replacement, Pololu is pretty good at offering 50% off when things like this happen. Ya could be your fault, but they still might offer it. You never know.
    Nick Moxley, Mar 16, 2017
    #5
  6. Evan Rowlands

    Evan Rowlands EMR Industries

    Joined:
    Jan 22, 2017
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    Occupation:
    business owner/ EMR industries
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    Melbourne Australia
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    - 72Coins
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    +32 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Arduino, Motion platform
    hi mate im a motor mechanic/formula ford race mechanic ALWAYS and i mean ALWAY remove all electrical components before welding...when i work on the cars i have disconnect the battery both leads because when you weld your just making and ark to melt steel..sorry to hear you have damaged the board.. we live and learn bro im having issues with monster moto boards
    Evan Rowlands, Mar 20, 2017
    #6