on video Reed switch motor

 

If you do not know much about electric motors, we recommend building this motor first. It is the simplest motor with some real practical applications and it works very well. You may take a look at how easy it is to assemble this motor from the kit you may order.

Most simple motors described either in books or on the Internet (see Links) aren’t stable, reliable, or powerful enough. Usually the brushes in these motors cause the problems. (In simple conventional motors the coil spins in a magnetic field and moves between two sliding contacts called brushes.) It is quite hard to make this part of the motor accurate and reliable without having special tools, materials, and skills.

Actually almost all of them are not real motors – nothing can be connected to them!

In 1997-2000 Stan designed and built for a school science fair project a brushless motor, in which the permanent magnets (this is the rotor) spin and the coil (this is the stator) doesn’t move. The reed switch was used to sense the position of the rotor and to change the magnetic field of the stator at appropriate times. This page explains the principles of Stan's original design, which provides excellent results despite its simplicity.

A reed switch consists of two magnetic contacts in a glass tube filled with protective gas:

 

If you do not know much about electric motors, we recommend building this motor first. It is the simplest motor with some real practical applications and it works very well. You may take a look at how easy it is to assemble this motor from the kit you may order.

Most simple motors described either in books or on the Internet (see Links) aren’t stable, reliable, or powerful enough. Usually the brushes in these motors cause the problems. (In simple conventional motors the coil spins in a magnetic field and moves between two sliding contacts called brushes.) It is quite hard to make this part of the motor accurate and reliable without having special tools, materials, and skills.

Actually almost all of them are not real motors – nothing can be connected to them!

In 1997-2000 Stan designed and built for a school science fair project a brushless motor, in which the permanent magnets (this is the rotor) spin and the coil (this is the stator) doesn’t move. The reed switch was used to sense the position of the rotor and to change the magnetic field of the stator at appropriate times. This page explains the principles of Stan's original design, which provides excellent results despite its simplicity.

A reed switch consists of two magnetic contacts in a glass tube filled with protective gas:

 

If you do not know much about electric motors, we recommend building this motor first. It is the simplest motor with some real practical applications and it works very well. You may take a look at how easy it is to assemble this motor from the kit you may order.

Most simple motors described either in books or on the Internet (see Links) aren’t stable, reliable, or powerful enough. Usually the brushes in these motors cause the problems. (In simple conventional motors the coil spins in a magnetic field and moves between two sliding contacts called brushes.) It is quite hard to make this part of the motor accurate and reliable without having special tools, materials, and skills.

Actually almost all of them are not real motors – nothing can be connected to them!

In 1997-2000 Stan designed and built for a school science fair project a brushless motor, in which the permanent magnets (this is the rotor) spin and the coil (this is the stator) doesn’t move. The reed switch was used to sense the position of the rotor and to change the magnetic field of the stator at appropriate times. This page explains the principles of Stan's original design, which provides excellent results despite its simplicity.

A reed switch consists of two magnetic contacts in a glass tube filled with protective gas:

 

If you do not know much about electric motors, we recommend building this motor first. It is the simplest motor with some real practical applications and it works very well. You may take a look at how easy it is to assemble this motor from the kit you may order.

Most simple motors described either in books or on the Internet (see Links) aren’t stable, reliable, or powerful enough. Usually the brushes in these motors cause the problems. (In simple conventional motors the coil spins in a magnetic field and moves between two sliding contacts called brushes.) It is quite hard to make this part of the motor accurate and reliable without having special tools, materials, and skills.

Actually almost all of them are not real motors – nothing can be connected to them!

In 1997-2000 Stan designed and built for a school science fair project a brushless motor, in which the permanent magnets (this is the rotor) spin and the coil (this is the stator) doesn’t move. The reed switch was used to sense the position of the rotor and to change the magnetic field of the stator at appropriate times. This page explains the principles of Stan's original design, which provides excellent results despite its simplicity.

A reed switch consists of two magnetic contacts in a glass tube filled with protective gas: