This is an exploded view of the drones
precision motor. Close scrutiny indicated
that the ends were pressed in. The ends
were removed by turning the motor in a
lathe and cutting the corners at forty five
degrees till the end came free, this was
done at both ends. The stator windings
appeared to be a pre wound coil
embedded in a laminated stator
structure.. There are no connections in
the motor housing, instead, the winding
leads are twisted, covered with insulation,
brought out of the housing and soldered
directly to the processor board.
The armature is a VERY powerful magnet
supported at each end by a micro ball
bearing set. This sealed motor appeared
to be a high quality item.
In case anybody cares, the two small
holes located at the opposite end of the
drive gear are not for ventilation per Se,
but assembly ports. The fact that they're
open and allow...stuff...to be drawn inside,
attracted by the magnet, warrants a
porous filter cover. It happened to me,
and you are looking at that motors guts.
NOTE: because the motor leads are so
delicate, the removal and re installation of
the motor assemblies should be kept to a
minimum. The wire is smaller in diameter
than the size of a cat whisker.
precision motor. Close scrutiny indicated
that the ends were pressed in. The ends
were removed by turning the motor in a
lathe and cutting the corners at forty five
degrees till the end came free, this was
done at both ends. The stator windings
appeared to be a pre wound coil
embedded in a laminated stator
structure.. There are no connections in
the motor housing, instead, the winding
leads are twisted, covered with insulation,
brought out of the housing and soldered
directly to the processor board.
The armature is a VERY powerful magnet
supported at each end by a micro ball
bearing set. This sealed motor appeared
to be a high quality item.
In case anybody cares, the two small
holes located at the opposite end of the
drive gear are not for ventilation per Se,
but assembly ports. The fact that they're
open and allow...stuff...to be drawn inside,
attracted by the magnet, warrants a
porous filter cover. It happened to me,
and you are looking at that motors guts.
NOTE: because the motor leads are so
delicate, the removal and re installation of
the motor assemblies should be kept to a
minimum. The wire is smaller in diameter
than the size of a cat whisker.
| This photo is enlarged. You need a 30X microscope to see the bearings. |
