Simple Motor

thingiverse

Create a 4-H electricity project with this battery holder base. Add an AA battery, wire, and magnet for spinning action. Watch the video at http://youtu.be/b_1SKegQsrc to see it in action. To build, print the holder and make rotor supports using 22ga copper wire. Place these into the holder's slots and glue a magnet on top. Wrap enameled wire around a battery to create a coil, then wrap its ends around the coil center as rotor arms. Balance is crucial. Strip half of the enamel off one side of the wire, perpendicular to the coil's hole. Insert the battery and ensure electricity flows to the rotor supports. Place the coil in the holder and adjust rotor support height for optimal spinning near the permanent magnet. Gently flick the rotor to start. If it doesn't spin, reverse battery polarity or check construction at http://robotranch.org/blog/archives/777.