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  1. Hemlock_Mike

    N450 & N465 build

    I have a bunch of "dead soldiers" from the past. You need any ? :D HM
  2. Hemlock_Mike

    RGB laser on ebay for 9 bucks??

    Benm -- I can dump ten bucks in a bar in a few hours. This might be a joke or better. "IF" it works, a couple galvos and TTL drivers might make a starting project. Otherwise, see my avatar. HM Ship Date: May 22
  3. Hemlock_Mike

    RGB laser on ebay for 9 bucks??

    I ordered one for grins. The next day it was reported shipped. We shall see......... Looks like a take-out from a projo prototype. HM
  4. Hemlock_Mike

    Hello, new here. In the Ring business thinking about a CNC laser engraver -- thoughts

    Dans -- I don't recommend a laser of any wavelength. The reflectivity of the polished metal will likely cause dangerous and power robbing reflections. A pulsed laser will likely deliver a string of dots unless you scan slowly. HM
  5. Hemlock_Mike

    Glassblowing

    Glass blowing is an art like blacksmithing. You have to practice OFTEN. So many of these arts are dying because there isn't an "app" for it. HM
  6. Hemlock_Mike

    Blackbuck 8M 8A driver group buy

    It is a constant voltage supply with limits on current and voltage. You can google that number. HM
  7. Hemlock_Mike

    Blackbuck 8M 8A driver group buy

    Look at a PTH08T250 module for 40 Amps ! HM
  8. Hemlock_Mike

    Custom built radio

    Cut the holes with a plasma cutter. 20 Amps should work fine. HM
  9. Hemlock_Mike

    The Minamoto Kobayashi Sugar Rockets Project!

    Wait 'till Flamin Pyro sees this. Although I'm a pyro, he will be of more help. Nice work.+rep HM
  10. Hemlock_Mike

    Ok...who tried to stick a laser diode in...

    Happy 04/01/2017 ! Hm
  11. Hemlock_Mike

    Do we have any musicians oh LPF?

    I built a Fender Tremolux 60 Watt amp from the schematic when I was in high school. 2 12" and 2 15" speakers will remove wallpaper! Last summer, I was asked to set up and demo a player piano at the museum. Boy, were my legs tired from those bellow pumps.... HM
  12. Hemlock_Mike

    405 TTL driver

    Thanks for the help. I'm looking at these now. As I recall, The BlackBuck output is limited to about 5 volts and a 405 diode needs ~ 6volts. HM
  13. Hemlock_Mike

    405 TTL driver

    I'm playing with my "tiny" etcher which I got from ebay a couple years ago. I removed the low power 445 laser and replaced it with a bigger blue. As normal, it doesn't focus to a point. I want to put in a 405 (about .7 watt) but I need a driver which puts out 6-7 volts AND has a TTL or...
  14. Hemlock_Mike

    Do we have any musicians oh LPF?

    I played Bluegrass guitar with a group for many years. HM
  15. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    DDEN - It would be nice to try another program but I suspect that the Ithing does its own processing. I'd like to know. HM
  16. Hemlock_Mike

    Analog panel meter questions thread

    I put a small plastic analog meter into a PS years ago. I had many Megs of resistor in line. NO PROBLEM... The meter blew itself out of the panel at 7,000 volts. It might work for you :-) HM
  17. Hemlock_Mike

    Sky Lasers?

    I got a 200 mW green years ago from Sky. It never put out 200 mW and if the temperature wasn't just right, I got about 50 mW just like right now. HM
  18. Hemlock_Mike

    AaronTs Very First Build - NUBM06 Powered Wand Phaser

    Nice housing. I started with a plastic replica and machined all the laser stuff to fit it. Mine still has the sound board. I used a logic level Mosfet as my 2+ amp current supply (switch) from two 14500 cells in parallel. HM Pretty simple build for lower power. It's still impressive.
  19. Hemlock_Mike

    OPTIC Handheld laser welding machine

    Looks like a big pulsed CO2 laser -- Nice ! HM


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