A resolution for that would be to encapsulate the motor assembly with the bag material a circuit board would come in. Not pretty but keeps the lines of flux near the motor.
ORIGINAL: FERNDALE AIR FORCE
Zoil, and anyone else, if you want to fly a naked design please remember that you are creating a magnetic field around the motor. You will attract dust etc quickly. Good
Luck, Tim
For all the new guys and gals, please read the first pages of this thread. You will probably find the answer you desire. Tim