The motor will run when the motor's second wire is connected to the battery holder's second wire. A switch can be installed between the motor and battery holder. This will allow the motor to be turned on and off without disconnecting wires or removing the batteries from the battery holder. The proper position of the switch is shown in Diagram B . If the paper doesn't stay on the motor's axle, you can try to hold it in place by fitting a pencil eraser to the axle.
Tape can also work.
This page is maintained by Steve Gagnon .