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Some rubbing alcohol has a small amount of glycerin in it which can cake on the lens like a very fine layer of American cheese. If you want to be careful, I'd test it first by cleaning a small glass window and shine an unfocused laser through it to see if the circle looks hazy after the glass

I'm having trouble finding 532nm 301 lasers on ebay above 30mw (filtered), which is enough to look cool, but not do much more than smoke black plastic. Of course I cheap out and mostly get the $7 ones instead of the $10 ones. I wonder if that extra $3 increases your chances of winning

:thanks: Oh yeah, this one: ebay diode It's a sweet deal because this 500mw diode looks like it works quite the same as the 700mw one Photonlexicon thread

AhHAHAHA!! 500mw ebay laser diode, 1.25A SL driver, SL green button cover, DTR 3 element lens, SL focus adaptor, ricktrent host and heatsink. I measured it max 566mw, but the output starts to fall after a minute or so probably due to thermal buildup or these cheap GTL batteries. The diode...

How could you slander your own country like that? Just because some people on the internet hate America doesn't mean you should too.

Nice. That heatsink is so perfect for Altoids tins, I just wish it had a slightly smaller diameter so you could use thermal paste

I used to think I had eye damage from looking at my class 4 laser dots on a wall, but then I found out that when I shake my eyeballs back and forth really fast that the dark spot relocates. I have floaters everywhere in there. Kinda makes it hard to see small/far text sometimes. I had a few...

I feel like this should become a sticky for any media outlining how stupid people can be, and just how dangerous these things are when sold as novelty items

Woah, nice catch there

something like this?

But the guy in the instructable doesn't say anything about safety glasses. And on top of that, he's instructing everyone who sees it to do the same Idk, it's just profoundly.. something.. like stabbing yourself to show others what happens when you stab yourself

I think the youtube video is all in good humor. But the guy in the instructable kinda gave himself some obviously amateur tats. Laser Tattoo Instructable WTH, you could totally avoid the skin cancer and cataracts if you paid for some ink and an artist.

Oh here it is hahahaha linked in this thread I was wrong about him actually shining it into his eye, but might as well have

You accepted my offer on host 3 but didn't follow through. Idk if it wasn't good enough or you fell off the face of the earth. Quick, someone signal him with your lasers

haha Thanks :thanks:

Yeah, everything on ebay is a gamble. Idk, I guess I just opted for the name I kinda trust a tiny little more

It's all good tho. Has anyone ever tried to return a laser with them? Idk since usually their stuff is so good

I bought this 405nm laser from Techhood to see if it was a good deal. It actually was, despite only emitting 300mw instead of 500. So I cranked up the amperage! It made a pop and a smoke. Both the diver and diode were dead. I bought a PL450B form marcuspeh and stuck it in there. I actually...

Meh, milliwatts; microwatts. Nanometers is what I'm after

Hey, thanks! I'm so new to gas lasers. I might get that one you sent me. It looks pretty good. If course, this buy thread is still valid until I close it