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  1. M

    Laser safety without goggles

    I have built a 2w 445nm laser and have more than one pair of laser safety glasses so that I am never taking any chances. My question, is I would like to build some lasers in other wavelengths, especially 405nm, but I would like to make them weak enough so that I can use them the same as I would...
  2. M

    First build help

    I recently ordered all the parts for my first laser build, put everything together, and got a sinking feeling when I turned it on and... no laser beam. I feel like the most likely cause is that either my laser diode or my diode driver is fried, but I don't know how to test them to find out. I...


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