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  1. WizardG

    Drilling a hole in a first surface mirror

    Diamond burr, as fast as you can spin it (bidding starts @ 10k RPM), underwater. Use very gentle presure. Let the diamond grit do the work. Tape, or something, to mask the mirror surface for protection. Bset Idea I've got.
  2. WizardG

    Found Cyan Laser diodes !

    At least those could, in theory, be repaired with new pump diodes. I guess I'm triggered because I really like the 462 color. These were some of my favorites for a while. Just gives me a sad seeing these being wasted stupidly. But, their diodes, their money. :sigh:
  3. WizardG

    Found Cyan Laser diodes !

    Does it bother anyone else watching this dude waste perfctly good M462 diodes by powering them up without proper heatsinking?
  4. WizardG

    Sketching ideas for custom host; Dreaming of my laser

    Shoehorn something like this into the tailcap: https://www.adafruit.com/product/1684
  5. WizardG

    Sketching ideas for custom host; Dreaming of my laser

    What about a 3-position tail switch: Off, momentary (enables the side clicky), and constant on (bypassing the side clicky)?
  6. WizardG

    A Long Overdue Update and Apology

    We've missed you .......and your drivers :)
  7. WizardG

    Space Discussion Thread

    Why? It was the most expensive ride to orbit ever. What was the maximum # of launches/year? It started out as a pretty decent design, then the military stuck their thumbs in the pie and cut it's capabilities in half.
  8. WizardG

    Low voltage, HC driver for a coherent FAP module?

    Buck converter was pretty much what I had in mind. Maybe parallel a couple of VRMs used for CPUs? Would take a custom PCB but would be pretty efficient. My motherboard can feed my CPU well over 100A @ 1.25 volts so they could handle the load.
  9. WizardG

    Low voltage, HC driver for a coherent FAP module?

    A linear regulator for this current @ only a couple volts is gonna generate a lotta heat. Well over 100 watts if you start with a 5V power supply. A switching regulator would be more complex but a lot more efficient.
  10. WizardG

    UV Lasers

    IR is cheap.
  11. WizardG

    UV Lasers

    Quite the bargain @ only $3200 for the 5 watt unit. But again, these are pulsed instead of CW.
  12. WizardG

    Space Discussion Thread

    Cute lil' thing. Wonder how the cost of throwing one of those away compares with reusable rockets from spaceX.
  13. WizardG

    Surprisingly hard to find 555, 573nm goggles

    $$ ouch. But of course, what are your eyes worth?
  14. WizardG

    Surprisingly hard to find 555, 573nm goggles

    https://www.survivallaserusa.com/Eagle_Pair__190-400nm___560-640nm_Laser_Safety_Goggles/p1667092_12825348.aspx 555 is right at the edge for these, but they cover 573.
  15. WizardG

    L.A.S.E.R., a word, or an abbreviation?

    It also doesn't help when they get the words making up the acronym wrong. Demerits for "Amplified" and "Stimulating"
  16. WizardG

    L.A.S.E.R., a word, or an abbreviation?

    Acronym.
  17. WizardG

    Am I slowly damaging my eyes using my burning laser pointer without glasses?

    "An increasing number of studies has revealed that long-term blue light (400–500 nm) exposure induces oxidative stress in the retina and causes severe damage to retinal tissues, especially RPE cells [13,14], with harmful effects peaking at 440 nm [15,16]."
  18. WizardG

    A little help for our friends

    I thought it was just an early April fools post :-)
  19. WizardG

    A huge group of idiots

    I think you meant ....clearly says it WAS in Mexico. From the headline of the article: Shocking video footage from a fireworks event in Tultepec, Mexico, shows a huge crowd targeting the aircraft as it flies above.
  20. WizardG

    Tesla Coil Build Thread

    Old school. Be careful with that 3 MOT power supply!


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