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From the picture, that is a sealed CO2 tube with water cooling. Tap water is fine for cooling these tubes as no water actually comes into contact with any important component.

The how-to would be a great article for the deviantphoton.com How-To section. Add some illustrations or photos and it'll be available to anyone as long as the site lives with you name on it.

Guys, if you ordered them you will get them. I can't speak as to why Dr. Lava hasn't responded but it's not uncommon as he's quite busy. It's not always fun to wait but I don't think anybody offering custom manufactured components on the forum does so as a full time job. Thanks John for the +1...

You really did that didn't you? Who are you, the forum secret police? I see your rep points are for a "cute" custom text. Based on that I think my 44 + and 1 - reputation is still secure. I'm sure if Andrew had a problem with it he would have notified me (since he has my personal email address)...

Just tell him you DO NOT want the pair he was blasting with the green laser

Reverse DNS / sbcp4.dhs.gov We track all kinds of things, such as: this month there were 22 unique .gov domain IP addresses. We can see where they went on the site and how long they were there

Alright, here's the smiley courtesy of the Russians:

I'm sure Dr. Lava will get used to his prison cell but I just thought I would put out some interesting information. I was going through the traffic logs for oemlasersystems.com and came across a visit today from the Department of Homeland Security. Guess what they spent 8 minutes viewing? You...

Um, the FDA comes and knocks on your door if it's a big violation. Otherwise they send you a letter on official FDA letterhead to contact them and arrange a meeting if they have questions. They do this because in an official investigation they must show you a badge as well as inform you of your...

The only thing you can figure out is average power as a rating in mJ means the laser is pulsed. To do this you also need to know the repetition rate. By the way 1.5J is quite a bit of energy for a small laser.

You can now register at the site. If you want to publish articles, links, or definitions request authorship rights after you register your account. You can publish about anything concerning the laser hobby. The more technical, the better. Remember you are creating a technical repository for...

I guess I missed this thread. Frankly guys, I don't really care if you buy from me or not. The point of my posts is simply when you purchase safety eye wear purchase certified eye wear. We provide two sets of glasses for hobbyists specifically. We wouldn't be doing that if it were not for me. I...

Yeah, because of that, those images are the extent of it. You shouldn't be surfing in class anyway.

I have been building the format of the site and it's up and running. There is no content at the moment just test articles but it is coming together in stages. Now comes the time to request links. If YOU own a commercial site (you sell lasers) or a discussion or hobby site and you want it linked...

Re: How to define Nominal Hazard Zone for class 4l You will probably have to contact the manufacturer. I would have thought that information would have been provided somewhere in their literature. Since you are marking/etching your beam path is enclosed through to the scan head. Perhaps, if the...

Mike it is imperative you consider the collimation of the pump beam. The shape and focus of the pump beam in conjunction with the OC determines the active area within the YAG crystal. Proper energy density is imperative without over saturating the crystal. If the pump beam is greater in diameter...

Yes YAG does not have as wide an absorption spectrum as vanadate. The nice thing about diode pumps, however, is that you can control the wavelength. Generally the wavelength changes about .3nm for each degree C. Keep in mind that it is better to get a hot diode (one that sits above 808nm) than a...

Ok, I have a URL and a site under construction. I think you guys will like it. Since the science of lasers is a pretty heavy topic, the site itself will be light and fluffy with a very unusual twist (due primarily to me being twisted). If you are a content expert and would like to submit...

Oakley makes great eyewear and I'll bet dollars to pesos they make laser protective eyewear for military applications but I see nowhere that the Oakleys you will be testing meet Z136. Blocking 100% of UVA, UVB, UVC and harmful blue light means what exactly? It means it will block that light at...

...I envision this to be much more robust. The wiki is only a portion of the site. This isn't just a wiki, that's why.