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ArcticMyst Security by Avery

Controlling Laser module by Arduino

Joined
Jun 22, 2011
Messages
2,431
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83
You could place both the sheet and the laser very high on a wall, so that reflections will hit the opposite wall close to the ceiling, or even hit the ceiling itself.

Anyways the sheets are cheap, go ahead and try sanding 'em.
 









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