Hacked Gadgets Forum

August 15, 2007

DIY Laser Projector Instructions

at 5:33 am. Filed under DIY Hacks, Electronic Hacks

 

With a laser pointer, two pager motors, a mirror and a small project box you can build a simple laser projector. The output looks like the patterns that were created by the Spirograph.


 


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10 Responses to “DIY Laser Projector Instructions”

  1. buma Says:

    Nice hack. Figures are calles Lissajous-Figures

  2. Axet Says:

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

  3. Mr. Maigo Says:

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

  4. cooperised Says:

    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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