My shaft adapter connects a 2mm (dc motor) to a 4 mm shaft (the Powerball rotor). One shaft connector - this is the only specialized item that must be acquired unless you can make one.
One rotor from a Powerball toy to serve as the gyroscope rotor - you can fabricate one from brass, steel or aluminum if you have access to a machine shop or can take one out of a toy gyroscope though that might be on the small size and will be more difficult to keep balanced. One 6 volt dc motor (size 170 with 2mm shaft) - but any small dc motor that spins at high rpm should work To make this gyroscope I had the following components: And when you first turn it on and it stands by itself - you will be amazed. This is a simple project that you probably already have the stuff lying around to make it with. Using just a small dc motor, a rotor from a Powerball toy (or something round and heavy that can be spun by a motor) - you can make a gyroscope that will balance itself on two legs.
