A bristlebot is a toothbrush robot. It represents the bare minimum that every robot should have:
- Motor - what makes it move
- Mount - in this case, the toothbrush head
- Electricity - stored in the battery
- Adhesive - something to hold it all together (I used sticker and zip tie)
What does it do? They're toys. The bristles vibrate and the whole thing moves across a flat surface, sometimes in circles. If you tip that surface, you can race 2 or more of them in the same direction to engineer the fastest one.
I built a few of them outside a FIRST Robotics competition:
How do you built it? Easy. A motor comes with a positive wire and a negative wire. Put the motor and battery on top of the brush, side-by-side. Stick one wire on one side of the battery. Then the other wire must touch the opposite side. That's it. This transfer of electrons turns into kinetic energy; the motor will start moving. To stop it from moving, unattach a wire from the battery.