Quote:
Originally Posted by Al Skierkiewicz
Tom,
That was more the effect I was worried about. From the angle of the trajectory would you say that the flames came from the end of the motor (brush assy) or from the commutator? I am guessing that is the only two places where debris would collect and still short to frame. Or could it be excess solder where the windings are tied to the commutator?
|
Actually, if I were to guess I'd say neither. The sparks actually exited the front of the motor through the holes that surround the axle. Had this been a short near the brushes or commutators, I would have expected them to come out the back (where I had my hands...).
That doesn't make much sense to me, because I'd expect the wire to be covered in varnish and not be conductive except at the locations you mentioned.