I recently found there are a number DIY toy motor posts or videos in youtube and other blogs. Among many of them, this is the simplest one I can think of. It amazes kids from three to eighty-three.
A coin, some magnets (I used five), a battery (a used one is good enough) and a short piece of wire.
Step 1 – put the coin between the magnets.
Step 2 – Put the battery’s positive to the magnet. The magnet should hold it nicely.
Step 3 – Put the wire on the battery. Make sure one end of the wire is on the negative of the battery and another end is briefly touching the coin, i.e. the positive of the battery.
I like the Energizer AA cell. It has a small dent at the negative. It can hold the wire’s tip nicely.
It just spins.
I will do some research about the theory behind and post it later. Thanks for reading.
The Simplest Possible DIY Toy Motor
The Daddiest Dad
DIY toy motor cannot be simpler. You need a coin, some magnets, a used battery and a wire. No glue and no soldering. It just spins. It amazes kids.