Design Contest • Flash Innovation 2003

Laser Spirograph

03/03/2020
Written by Circuit Cellar Staff

Motorola Flash Innovation 2003 – Design Contest
Distinctive Excellence

Matthew Bieker
U.S

Abstract:

The 68HC908QT4-based laser projects onto a primary offset mirror. The primary mirror spins a circular image onto the secondary mirror, which is also spinning. The secondary mirror then projects the first pattern onto a wall or screen. The difference in mirror speeds of the two motors creates spirograph-like images.

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