GBC Speedometer

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5 Responses

  1. martin careless says:

    why is there no building instructions or part list for the GBC speedometer how can I build one if there is no building instructions AS I WANT TO USE IT FOR MY MARBLE RUN

  2. Nico71 says:

    If there is not ball inserted, the cursor goes to min, and when it has reached it can not moves, but the system is not locked because I have placed a linear clutch. You can see this linear clutch on the picture in red. Regards

  3. Yossi says:

    Very imppressive.
    I don’t unserstand what will happen when long time no ball is inserted. The speedometer will be on Min and it will try to be lower but the chain can’t move any more.
    Will the 6 end wheel turn to the opposite side?
    On the opposite case, if the speedometer is on Max for long time and the chain can’t move more. Will the GBC go slowly?

  4. Nico71 says:

    No philo, the green color is good because for a GBC, the aim is to have speed, not empty module for viewing convenience, that is why I have chosen the green color for maximum speed 🙂

  5. Philo says:

    Beautiful – and clever as usual 😉
    The only thing that mildly annoys me is the color of the dial: speed is generally associated with danger and red color, not green. Anyone who nursed a GBC loop will know what I mean 😉

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