A Homemade Motor -- Out of LEGOS!

[Starwhip]

So we turned the motor in. 12 volts, 1200 rpm, 1 amp.

No clue why the amperage shot through the roof like it did, I've seen it pull 0.1 amps at that speed.

It was a 90% in rpm, an 85% in amperage... plus 110% in craftsmanship and 115% in creativity.

So averaged out, a 100%.

[Nuke]

its all about wire gauge. thicker wires means your motor will be able to draw more current (which also means it will run faster and with more torque). at least thats the rule of thumb for rewinding motors to improve their performance. actual maths here.

[Starwhip]

We are currently incorporating the motor into a lego car. We managed to go a few inches by holding the brushes to the commutator, and are currently working on a way to get the brushes to maintain contact.

When completed, it should travel at about 6 inches per second. That's 30 feet per minute, or ~10 meters.

It will go faster if we get a bigger battery...

[StrandedonEarth]

Very cool fusion of science and Lego