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06:07 $DIY How To Make A Green Laser Projector In 20 Minutes!!!. Laser is from Dragonlasers at http://www.dragonlasers.com A DIY video one how to make a simple green laser projector in less than 20 minutes on the cheap from Zedomax at http://zedomax.com/blog/ The Spartan laser and diffraction grating used in this green laser projector are from Dragonlasers$ DIY How To Make A Green Laser Projector In 20 Minutes!!!
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03:29 How To Find The Surface Area Of A Rectangular Prism
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02:33 Lens Cleaning Tutorial For A Green Laser Pointer
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