I would like to create a motor set up so I can use it to ring a bell inside a small tower. Since I haven't used any of the current LEGO motors was wondering what the group would suggest.

  1. which motor to use.
  2. which battery/switch to use.

What I need is a simple switch with a motor. Something that I can turn off and on with out much trouble.

  • I'm guessing this is not a Mindstorms question. If it were, I'd suggest the original RCX motor, a loop of string around two pulleys, making the on/off button a touch sensor.
    – dfrevert
    Oct 23, 2013 at 23:36
  • 3
    do you want one bell ping per button press, continuous ringing while button pressed/switch on, or some other pattern? The answers vary. And what bell will you use, since Lego don't AFAIK make a metal bell. Or do you mean a piezoelectric buzzer (or similar)?
    – Móż
    Oct 24, 2013 at 0:03
  • @Ӎσᶎ I'm going to assume the question asker is going to use a metal bell since he/she would like to use a motor. It would be helpful to have those other points clarified.
    – Ambo100
    Nov 13, 2013 at 16:34

1 Answer 1


LEGO Power Functions would probably be the most suitable option. You could use a PF M-Motor (8883) combined with a PF AAA Battery Box (88000) which has a two-way switch and is more than capable of powering four medium size or two extra large motors (each item sold separately).

  • As to the design, that's completely up to you and dependent on the construction of your bell tower. I'd be more capable of answering your question if you gave some more details.
    – Ambo100
    Nov 13, 2013 at 16:36

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