Another simple and somewhat useless ‘object’. Just for fun. A neodymium magnet, wooden blocks and a LED. One joint to solder. Try to experiment with the (battery) wheel…
![](https://basicsoldering.com/wp-content/uploads/2022/12/00-blocks-wheel-led-1024x771.jpg)
Used materials:
- copper tape 5mm
- some wire
- neodymium magnet 3x2mm
- 3mm rgb slow flash LED, 3v
- cr2032 3v button battery
- 2x wooden blocks
- and of course a soldering iron with some solder, and other tools….
Circuit
The copper tape conducts electricity from the battery to the LED. The battery has a positive and a negative side. Often the positive side is marked with a ‘+’ sign. The LED also has a positive leg (long) and negative leg (short).
Step by step instructions
![](https://basicsoldering.com/wp-content/uploads/2022/12/02-blocks-wheel-led.jpg)
Wrap copper tape around the first block in the middle
![](https://basicsoldering.com/wp-content/uploads/2022/12/03-a-blocks-wheel-led.jpg)
Wrap copper tape around the second block, hide the magnet under the tape, exactly in the middle of the block
![](https://basicsoldering.com/wp-content/uploads/2022/12/03-b-blocks-wheel-led.jpg)
![](https://basicsoldering.com/wp-content/uploads/2022/12/04-blocks-wheel-led-1.jpg)
(On the opposite side of the magnet in the middle of the block) Cut & solder the short leg (cathode) of the LED
![](https://basicsoldering.com/wp-content/uploads/2022/12/05-blocks-wheel-led-1.jpg)
Make a new leg from some wire
![](https://basicsoldering.com/wp-content/uploads/2022/12/06-blocks-wheel-led.jpg)
Solder the new leg to the long leg (anode) of the LED
![](https://basicsoldering.com/wp-content/uploads/2022/12/07-blocks-wheel-led.jpg)
Attach the negative side of the battery to the magnet, and position the top block on the first block. The battery looks like a wheel, wiggle it to get the top block to balance.
When finished you can combine this object with this wooden structure. Or check my youtube channel.