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I HATE morons like that !!!! :yabbmad: Not only does he put others at risk, but he provides fuel for the fire to ban all lasers. I do like to shine my laser into the sky, BUT I make 100% sure no aircraft is around. My fear is that with so many Bozos trying to hit aircraft, someday someone...

Murphy's Law: If anything can go wrong, it will !!! The problem is risk vs. potential damage. Assuming that the beam hit only a nice wall across the room, it's OK, BUT if by some chance you hit something that reflects into your eye, you risk blindness. (1) Use laser safety glasses. The...

The 100kW figure depends on are we talking burst OR continuous for power. If burst, a large bank of capacitors could store up a massive charge that is let go of at once, much like an electronic flash. In that case, a smaller generator could run for a short while to power up the system. Bob Diaz

I haven't really started the main part of the build yet, but I have done the initial set-up and testing. Here are some of the photos. The heat-sink from Z-Bolt is really nice. The hex screws to tighten it appear to be 3mm (#3 in my tool kit). The holes are very close to the holes on...

SteveT, I'm getting the diode/module from DTR's shop. 520nm Osram PL520 Diode In Copper Module W/Leads & 405-G-2 Lens. It should arrive in a day or so... :wave: https://sites.google.com/site/dtrlpf/home/diodes/pl520-520nm-laser-diode His test data made it easy for me to decide on what...

Oh, one more thing what area do we post the write-up for our build once I get it working?

I've designed the power system with a diode to protect me from the oh %^&%^& moments should I plug in the power backward. The think I'll be interested in seeing is how hot it gets as I run it in both modes. My calculations show it's about 1 watt into the laser in low power mode and about 2...

On a personal note, I'm excited because I ordered all the parts for my first build. In this case it's going to be a dual power 55mW/107mW (give or take) Green Laser. As I said in the past, I've been slowly working up my way up the power curve from <5mW to 25mW to 80mW. I considered jumping...

I've been looking at several different solutions. It appears that a "Do It Yourself" project with a heat sink may be my best answer to this. 12 mm, Green Laser Line Generator, Wire Leads - 1 pc Heat Sink for 12 mm Modules Hopefully Z-Bolt is a good company to work with on this. IF anyone...

$309 (Look of eyes wide open) WOW, that's a bit much for our application. I fear the duty cycle is going to kill this idea. Bob Diaz

A family member needs to project a straight line across a floor and wants the line to be there for hours at a time. This gets into an area I've never worked with and wanted to see what others knew. If this was a single spot, I know that 5mW would be the maximum, BUT because the energy is...

When working with 5mW or less, safety glasses are not required because the blink reflex of your eyes is fast enough to protect your eyes. Above 5mW safety glasses are a critical requirement, unless you like the idea of something going wrong and ending up blinded.

Meet robocrow: Machines shooting long-range laser beams to scare birds away replace scarecrows: Read more: Meet robocrow: Machines shooting long-range laser beams to scare birds away replace scarecrows | Daily Mail Online So a green laser with random or sudo-random movement is used to scare...

I was just a kid when that article came out, but I do remember it. There was no way my Dad would build one or want to build one, but that didn't stop me from dreaming about it. :drool: Once the Fall school semester is over and I have more free time, I plan on building a few lasers. Bob Diaz

I wonder how long until we see something like this in DTR's Shop? :D All jokes aside, I found a second article: http://rt.com/news/205711-us-laser-weapon-persian/ ... and a nice video: https://www.youtube.com/watch?v=YX-yKgKthSE It seems very likely to me that this is going to become more...

U.S. Navy Deploys Its First Laser Weapon in the Persian Gulf U.S. Navy Deploys Its First Laser Weapon in the Persian Gulf - Bloomberg Interesting read and it includes a video too. > 30kW laser (video says 50kW) > up to 10 miles range > Cost per shot $1 > Bad weather shortens range >...

While a green laser might work, your message is limited. If you're hurt, how does anyone know you're hurt and not just playing with a laser? I guess you could send SOS in Morse code, but if the person seeing that doesn't think, the message might not get through. If you mush hike solo, this...

Like many things in life, SPAM is impossible to eliminate 100%, so you just live with it and try your best to ignore it. So when I see a post about some "great new store" or some such thing, take it with a grain of salt. Maybe the newcomers might be fooled by such messages, but the smart...

Most of their lasers do have enough technical information posted, but this laser lacks basic information like duty cycle and allowable operating voltages. Under "Accessories:" it shows a power supply, which comes with it, but it also shows a "Mounting Bracket" which does NOT come with it...

RE: Honest opinion on Laserbtb I did purchase a laser from them, while it works OK, the feeling I got is that the company is not top notch. Information on the laser is lacking, they do answer the emails with my questions, but the answers are short and very minimal. It looks like they are...