Extra wire in motorworks cars?

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    • July 3, 2004 at 8:05 am #10586
      HACHI-RYOKU
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      • Posts: 286

      I recently picked up some motorworks cars and I opened them up to find that it has an extra wire. I don’t know why it’s there. It’s a wire soldered from the “-” terminal on the pcb to the heat sink. The motor is hardwired, so I don’t think it’s for current going to the motor. I think it either has something to do with heat on the motor, or it’s for cleaning up the signal transmition.

      Anybody have any ideas on this?

    • July 3, 2004 at 8:41 pm #31854
      betty.k
      Participant
      • Posts: 2487

      sounds to me like a crappy faraday cage idea. if the heatsink envelopes the whole motor it should act as a shield to rf coming from the motor. but i’m just guessing:8ball:

    • July 3, 2004 at 9:09 pm #31853
      merc-blue
      Participant
      • Posts: 1547

      yeh it might ground some of the current generated by the motor (similar to what capacitors on it do)

    • July 4, 2004 at 2:56 pm #31829
      HACHI-RYOKU
      Participant
      • Posts: 286

      The motor generates current? I thought it needed current to run??? Sorry, I’ve never heard this.

    • July 4, 2004 at 3:15 pm #31830
      merc-blue
      Participant
      • Posts: 1547

      all motors generate current as they spin in the oppisite direction to the drive current becasue a generator is basicaly the same as a motor… thats y you have capacitors on motors

    • July 4, 2004 at 10:20 pm #31826
      micro_Amps
      Participant
      • Posts: 1290

      Merely extra grounding to reduce RF interference (sp?) and extend the range.
      :)uA

    • July 4, 2004 at 11:22 pm #31824
      Pork_Hunt
      Participant
      • Posts: 349

      I think we just found the next matchstick mod…

    • July 5, 2004 at 10:51 pm #31807
      HACHI-RYOKU
      Participant
      • Posts: 286

      NOOOOO!!!! NOT THE MATCHSTICK MOD! THAT’S THE MOD TO DESTROY ALL OTHER MODS!:shock:

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