Lego Hand Crank Flashlight

By in PlayLego

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About: my name is Adam!

This is super easy to make and woks supprisingly well!
its pretty cool

Step 1: Pats

Here's The things you need:

1.Lego Mindstorms motor

2.a few lego parts

3.short lego cable

4.an LED

Step 2: Attatch the Cable

Put one end on the contacts, and the other end on the bottom of the motor.

Step 3: Attatch the Crank

stat with putting a 90 degree angle "attacher thingy" (I know,very technical lingo) on the end coming out of the motor. then attatch a "stick" the another "attatcher, then another "stick"

Step 4: LED

Attatch the LED by pulling the leads appart, then wedging it in the bottom of the block on the side free side of the wire. each lead should be toutching the contacts diagonal from eachother

Step 5: Done!

thee you go just crank itand it should work, if not, crank it the other way

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    11 Discussions

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    mikemike

    11 years ago on Introduction

    You know I love these lego cranks using the motors cuz' i have 13 of em' and have no use for them :D...nice design

    1 reply
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    xiaochou

    12 years ago

    Just a thought from a newbie: I wonder if anybody has thought about trying to accomplish the same thing with an old fishing reel by basically making the reel a generator/motor, adding a capacitor/battery, etc. May be a great gift for all those fishin' buddies out there.

    1 reply
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    Fat Bagel

    11 years ago on Introduction

    thats a great idea to use a fishing reel it could work really well

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    labp2219

    11 years ago on Step 4

    i love legos and i love LEDs this is
    the best thing i have ever seen!!!

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    LasVegas

    12 years ago on Step 5

    Crank the other way, or reverse the LED. Try putting in two LEDs of different colors and opposite polarity. Then you get a different color depending on which way you crank the motor.

    1 reply
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    Elastometer

    12 years ago

    Nice little Instructable! I fancy having a go at this and maybe adding a capacitor battery and substituting the yellow led for a blue one. Cheers for that!

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    VIRON

    12 years ago

    nice. I have a similar instructable project but not with lego.