DIY Simple DC Motor / How to Make a Simple dc Motor ...

A simple spiral trace is easy enough to create, but when for example creating a circular array of coils for an electric motor there’s a need for more complex shapes. Drawing a trapezoidal spiral ...

The basic idea is simple. Using a special jig, he connects an LED across two random pins and spins the motor. If the LED lights, you’ve found a coil. You just don’t know which coil ...

This would tend to make the motor come to a stop, but two features allow the coil to continue rotating: This means that the current in the left hand part of the coil still causes a downward force ...