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Recent content by minh714

  1. minh714

    Pulley and Rope

    Hi! I try to design a pulley system use to lift a box weight 1/2 lbs off the ground 2 inches then lower it down. The box need to be really really stable, it can't move in any directions when being moved up and down. I have pulley, rope and a motor. What else do I need? Can someone tell me how to...
  2. minh714

    how to control 3 motors using relays???

    HI everyone! I have 3 12V regular motors. Motor #1 run then it must be stopped and #2 start then stop and #3 start then stop and #2 start in opposite direction and stop then #1 start in the same direction again to begin a new cycle. But odd cycle (1,3,5,7,9,etc) motor #3 run in one direction and...

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