DIY Laser Projector Instructions

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10 Responses to “DIY Laser Projector Instructions”

1. buma Says:
   August 15th, 2007

   Nice hack. Figures are calles Lissajous-Figures

2. Axet Says:
   August 15th, 2007

   The figures aren’t Lissajous figures, they’re Hypotrochoids and Epitrochoids.

3. Mr. Maigo Says:
   August 15th, 2007

   um… 15 bucks…
   http://www.thinkgeek.com/geektoys/science/97ab/

4. cooperised Says:
   August 15th, 2007

   Technically they’re neither. If each of the motors only affects the angle of the beam in a single plane, and the two planes are orthogonal, and the nature of the disturbance in each case is truly sinusoidal, and the two motor speeds are constant, _then_ we’ll have a Lissajous figure. But none of these things are true.

   So let’s not argue - they’re pretty pictures and it’s a fun hack!

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   August 16th, 2007

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