Hand Powered Clock

in this instructable, I will be showing you how to build a Hand powered clock.

You will need
1. a digital clock display ( already programmed)
2. a 2 gear power crank
3. tape

Step 1: Attaching the Clock Display

Take your digital clock display and tape it to the top of your power crank.

Step 2: Connecting the Wires

Attach the positive wire to the left terminal on the motor. Connect the negative wire to the  right motor terminal.

Step 3: END

Congratulations! You have successfully built a hand powered clock!! =)



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    3 Discussions


    7 years ago on Introduction

    There's not much detail here. Is the clock powered with a battery backup to keep the time, and when cranked actually shows on the display? If so it would have the function of a clock. If it shuts completely off every time it wouldn't be very useful except to make you hand tired ;)

    This would be a good way to show electricity generation at a museum or something though (although a light bulb has always been the popular choice for hand powered teaching).

    2 replies

    Reply 7 years ago on Introduction

    It does shut off every time you stop cranking the power crank. This is something I've been trying to work around. It's not a very good design. :(

    Dream Dragonbeaver84

    Reply 7 years ago on Introduction

    Seems like an excellent design to me, an artistic statement on the way our entire modern lives are scheduled.

    I agree that it's not very practical, but the addition of a capacitor should help there, given that an ordinary clock can run for MONTHS on a single "AA" type battery, a relatively small capacitor should give you hours if not days. More like the good old fashioned mechanical clocks that needed winding every week.

    Good work.