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    Using a LPM to test laser engraving enclosure

    I want to make a 2.5w 445nm blue laser engraving enclosure, in addition to wearing googles. The laser enclosures are expensive and small. What If I buy 4mm thick orange acrylic, and test it with a LPM? I can test the reflection, as well as a direct shot through the acrylic. It would be hard...
  2. G

    Hello from Canada!

    I am so glad to find this forum. I unfortunately found this forum after I ordered some $5 laser googles from banggood I reorder better ones from survival laser. I am looking to make a 2.5w laser engraver.