Assembly instructions for kit #14
3
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4. Attach four magnets to the rotor. Try to be accurate and center them on each side. Make
sure there is no gap between the plastic halves.
Make the second rotor with two magnets if you plan to compare them during your
experiments. Attach the magnets to the opposite sides. This step is optional and may be
done later.
5. If you assembled the motor properly and lubricated the axle this motor on 6 Volts may
rotate with the speed exceeding 6000 RPM (with the speed control knob). In some of our
experiments we achieved more than 7000 RPM! This is really fast and due to centrifugal
force the magnets may lose the adhesion and break the reed switch or fly off the rotor.
Add the safety ring that completely eliminates this possibility. It fits tightly and requires
some effort. Center the ring to cover the magnets. Squeeze the rotor halves together to
make sure that there is no gap between them.
