Elenco Electronics 202 - Manual (Page 38)

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Project #59
OBJECTIVE: To produce circular artistic drawings.
Rebuild the simple motor connection as shown on the left. This is the same setup as project #57.
Setup: Cut out a circular piece of thin cardboard from the back of an old spiral notebook or note pad.
Use the fan blade as a guide. Place the fan on the cardboard and trace around it with a pencil or pen.
Cut the cardboard out with scissors and tape it to the fan blade. Do the same thing with a piece of white
paper, but tape the paper on top of the cardboard so it can be removed easily later.
Drawing: To make a ring drawing obtain some thin and thick marking pens as drawing tools. Spin the
paper by pressing and holding the press switch (S2) down. Press the marker on the paper to form rings.
To make spiral drawings, release the press switch, and as the motor (M1) approaches a slow speed,
move the marker from the inside outward quickly.
Change the colors often and avoid using too much black to get hypnotic effects. Another method is to make
colorful shapes on the disc then spin the disc and watch them blend into each other. When certain speeds
are reached under fluorescent lights without electronic ballasts, the strobe principle shown in another project
will produce strange effects and backward movement. Make a wheel with different colored spokes to see this
strange effect. Adding more spokes and removing spokes will give different effects at different motor speeds.
Spin Draw
Project #60
OBJECTIVE: To run the motor using the space war IC.
Space War Flicker Motor
Thin Cardboard White Paper
Turn on the slide switch (S1) and the motor (M1) spins (you may need
to give it a push with your finger to get it started). The sounds from the
space war IC (U3) are used to drive the motor. Because the motor
uses magnets and a coil of wire similar to a speaker, you may even
hear the space war sounds coming faintly from the motor.