Other Links Simple Electric Motor - An award winning science fair project on the construction of a really neat brushless DC motor. Has complete constructions plans as well as a kit you can buy containing all of the materials necessary to build the motor. Starting about 3 inches from the end of the wire, wrap it 7 times around the toilet paper tube. Cut the wire, leaving a 3 inch tail opposite the original starting point. Wrap the two tails around the coil so that the coil is held together and the two tails extend perpendicular to the coil.
Balance is important.
You might need to put a drop of glue where the tail meets the coil to prevent slipping. On one tail, use fine sandpaper to completely remove the insulation from the wire. On the other tail, lay the coil down flat and lightly sand off the insulation from the top half of the wire only. M5.gif Place the coil in the cradle formed by the right ends of the paper clips. You may have to give it a gentle push to get it started, but it should begin to spin rapidly.