LED Rollie




About: Hi all, I'm a college student in the copenhagen technical college. I'm currently working with 3D printers and I'm building my own RepRap.
The LED Rollie is a pretty silly, but funny thing.

Simply roll it through your neighbourhood and you'll gain a lot of attention.

I got the idea of the LED rollie when I was bored, and I saw this roll of solder, but without solder. I found out, that 2 AAA batteries fitted perfectly into the center of the roll.

Step 1: Parts You'll Need

To make one LED Rollie you'll need:

a Roll of solder, with no more solder on it.

Some LEDs (I used 2 5mm diffuse blue LEDs and 2 5mm diffuse green LEDs)

2 AAA batteries.

Some hookup wire.

an on/off switch (optional)

Step 2: Drill the Holes

Drill the holes for the LEDs. It might be a good idea to drill the holes a little bit smaller than the LED size, cause some "5mm" LEDs are actually 4,5mm or so.

Step 3: Insert the LEDs

OK, now it's time to mount the LEDs in the holes. Move your mouse over the yellow boxes in the pictures to view the instructions.

Step 4: Solder the LEDs Together

Solder the LEDs together. move your mouse over the yellow boxes to view instructions

Step 5: Mount the Batteries

Simply press the batteries into the center of the roll. They fit so perfectly, that they're held in place by friction.

Step 6: Solder It All Together

In this step, I will show you how to solder the LEDs, the batteries and the switch together. Move your mouse over the yellow boxes in the picture, to view instructions. I know, it's a bad idea to solder onto batteries, but i tried to tape it together and it didn't worked.

Step 7: Roll It!

Now it's time to get your big geeky glasses on and roll this thing.

If you didn't understand this Instructable, then please let me know.



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    84 Discussions

    jam BD

    9 years ago on Introduction

    really shouldn't solder on the batteries...
    hey the more dangerous it is the better = )

    2 replies

    10 years ago on Introduction

    wouldn't it be more fun to add a low speed motor with a weight, and make that thing spin by itself, at least in a circle? a counterweight is probably needed on the other side lI mean like that:

    3 replies

    u mean that's good?? it took my like 10 min and I didn't even rendered it anyways, I use google sketchup. it's really easy to use and u can render the images with some add-on(forgot the name).


    Reply 10 years ago on Introduction

    Dude, sketchup? why that when you could used decent software like solidworks, pro desktop or even (if you had one million dollars), Catia. Nice instructable though!