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Project 8
Flying Saucer
Build the circuit shown on the left by placing all the parts with
a black
1
next to them on the board first. Then, assemble parts
marked with a
2
. Install two (2) “AA” batteries (not included)
into the battery holder (B1) if you have not done so already.
Push the press switch (S2) until the motor reaches full speed,
then release it. The fan blade should rise and float through the
air like a flying saucer. Be careful not to look directly down on
fan blade when it is spinning.
If the fan doesn’t fly off, then press the switch several times
rapidly when it is at full speed. The motor spins faster when
the batteries are new.
The glow fan will glow in the dark. It will glow best after
absorbing sunlight for a while. The glow fan is made of plastic,
so be careful not to let it get hot enough to melt. The glow looks
best in a dimly lit room.
Project 9
Fan
!
WARNING:
Moving parts. Do not touch the fan or
motor during operation. Do not lean over the motor.
+
+
Use the preceding circuit, but
reverse the position of the motor
(M1). Push the press switch (S2)
to spin the motor and glow fan.
Here the glow fan is blowing air upward; place your hand a
short distance above the motor and you should be able to
feel it.
In this project electrical power was changed into mechanical
power. Motors like this one are used in battery powered
equipment requiring rotary motion, such as a cordless drill,
electric toothbrush, and toys. An electric motor is much
easier to control than gas or diesel engines.
Placement Level Numbers
!
WARNING:
Moving parts. Do not touch the fan or motor during operation.
Do not lean over the motor. Fan may not rise until switch is released.
-13-
The air is being blown down through
the blade and the motor rotation
locks the fan on the shaft. When the
motor is turned off, the blade
unlocks from the shaft and is free to
act as a propeller and fly through the
air. If speed of rotation is too slow,
the fan will remain on the motor
shaft because it does not have
enough lift to propel it.
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