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Recent content by Hephaestus

  1. Hephaestus

    Hit in eye with 1000mw 445nm blue laser

    Welcome to the world of lasers. And props for good discretion 🍻 Maybe when they're a little older and understand the dangers you guys can get more involved. Building a laser would make for a great project with them.
  2. Hephaestus

    First build, assembled, not turning on

    Glad to hear things worked out in the end 🍺
  3. Hephaestus

    Sharp 395nm GH0393AA2G

    No worries; that is why I asked;) Don't let the weasel bother ya either. It's a darn shame something like him happened to LPF.
  4. Hephaestus

    Politics and General Debates Thread

  5. Hephaestus

    Sharp 395nm GH0393AA2G

    I was never much of a fan of violet lasers myself. Where'd you buy these from? (if you don't mind disclosing your source)
  6. Hephaestus

    First build, assembled, not turning on

    I think Giannis is right here. It's hard to say what killed the diode, but I would try to figure that out before replacing it. Especially if it was the driver that failed.
  7. Hephaestus

    First build, assembled, not turning on

    Like you said, the diode itself doesn't require much voltage but sometimes 1 battery is insufficient for both the voltage drops of the diode and driver.
  8. Hephaestus

    First build, assembled, not turning on

    Amazon ships fast these days!
  9. Hephaestus

    First build, assembled, not turning on

    Well you can try 2 rcr123a (16340) batteries and see what happens. These diodes are pretty tough
  10. Hephaestus

    First build, assembled, not turning on

    One should be able to see a beam at 500mW+ of 638nm no problem. Sounds like there's still an issue.
  11. Hephaestus

    First build, assembled, not turning on

    that looks plenty bright to me! This is a multimode diode so the beam profile will be ugly to say the least... You can play around with the focus but the the beam will always be rectangular like that Edit: It's a bit hard to tell on the brightness on a second glance. Do you have a LPM? Or...
  12. Hephaestus

    First build, assembled, not turning on

    If you can see light but it's way too dim, then I can think of two possibilities: 1) you already killed the diode 2) you're running the diode just below the threshold current (the diode can't draw enough current to properly lase)
  13. Hephaestus

    First build, assembled, not turning on

    You may have soldered to the wrong diode pin. It looks like the right pin is positive, the middle negative and the left is the case pin. Edit: My next guess is you may have mixed up the polarity somewhere along the way. Do you have a multimeter? This will help troubleshoot polarity problems...




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