Data Sheet

Project 92
Swing LEDs
Place the circuit on a white page and
rotate so the LEDs are facing down.
Turn on the switch; a color pattern
shines on the page. Change the
image size by rotating the LEDs
upwards.
Project 94 Follow the Field
Project 93
Swing LEDs ?
Build the circuit as shown,
mounting the gear insert and the
small gear on the orange motor
(M9). Place the magnet in the
center of the gear.
Mount the compass on the 3D
snap, making sure it is level. Turn
on the slide switch (S1). The gear
and compass needle should be
turning in opposite directions.
You can use a compass to trace
out the magnetic field lines of a
bar magnet. The needle of a
compass is itself a permanent
magnet and the north indicator
of the compass is a magnetic
north pole.
A magnetic north pole will
attract the south pole of another
magnet, and repel a north pole.
Place all the parts on the base
grid, then assemble the LEDs on
the vertical snap wires (V1).
Turn on the slide switch (S1) and
all the LEDs light. Adjust the
LEDs to different angles.
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SC-3DMEG_Manual.qxp_SC-3Di_Manual_060816 6/19/17 7:32 PM Page 64