Data Sheet

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Project 37

Faster Spinning Vertical Lights

Project 36

Spinning Vertical Lights

Assembly (adult supervision recommended):

Place base grid support on base grid A.

2. Place parts on grid B, and install into base grid

support on grid A. The pegs should be facing inward.

Also attach the 2-snap wire to the 90 degree vertical

snap wire (V1) that hangs off the top of grid B.

3. Mount the blue & color2 and LEDs (D9 & D12) to the

3D snaps, and attach the large gear and two 1-snap

wires on opposite sides, as shown. The teeth on the

gear should face the LEDs, and the “+” side of the LEDs

should be away from the gear.

4. Place the remaining parts on grid A. Place the small

gear in the gear insert and mount on the orange motor

(M9); the teeth on the gear should face up.

5. Mount the LED assembly from step 3 between the 2-

snap wire that hangs upside down and the 3-snap wire

on level 4 on grid A, as shown. The teeth on the large

and small gears should align.

Turn on the slide switch (S1). The color2 and blue LEDs

should light, and be rotated by the gears. The blink red

LED (D11) is blinking (and providing mechanical

stability).

Use the preceding circuit, but carefully swap the gears, so that

the larger gear is on the motor and the small gear is on the 3D

snap. The LEDs spin faster now, but the circuit may fall apart

too easily.

The circuit is more

stable when the gears

spin slowly.

Note: Go to: www.snapcircuits.net/sc3dmeg

for interactive 3D pictures to help with

building the 3D circuits.

Note: If the LED

assembly fit seems tight,

remove this 1-snap wire.

SC-3DMEG_Manual.qxp_SC-3Di_Manual_060816 6/19/17 7:30 PM Page 29